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  • Journal article
    Aaij R, Abdelmotteleb ASW, Abellan Beteta C, Abudinén F, Ackernley T, Adefisoye AA, Adeva B, Adinolfi M, Adlarson P, Agapopoulou C, Aidala CA, Ajaltouni Z, Akar S, Akiba K, Albicocco P, Albrecht J, Alessio F, Alexander M, Aliouche Z, Alvarez Cartelle P, Amalric R, Amato S, Amey JL, Amhis Y, An L, Anderlini L, Andersson M, Andreola P, Andreotti M, Andres Estrada S, Anelli A, Ao D, Archilli F, Areg Z, Argenton M, Arguedas Cuendis S, Artamonov A, Artuso M, Aslanides E, Ataíde Da Silva R, Atzeni M, Audurier B, Authier JA, Bacher D, Bachiller Perea I, Bachmann S, Bachmayer M, Back JJ, Baladron Rodriguez P, Balagura V, Balboni A, Baldini W, Balzani L, Bao H, Baptista de Souza Leite J, Barbero Pretel C, Barbetti M, Barbosa IR, Barlow RJ, Barnyakov M, Barsuk S, Barter W, Bartz J, Bashir S, Batsukh B, Battista PB, Bay A, Beck A, Becker M, Bedeschi F, Bediaga IB, Behling NA, Belin S, Belous K, Belov I, Belyaev I, Benane G, Bencivenni G, Ben-Haim E, Berezhnoy A, Bernet R, Bernet Andres S, Bertolin A, Betancourt C, Betti F, Bex J, Bezshyiko I, Bezshyyko O, Bhom J, Bieker MS, Biesuz NV, Billoir P, Biolchini A, Birch M, Bishop FCR, Bitadze A, Bizzeti A, Blake T, Blanc F, Blank JEet al., 2025,

    Measurement of the Ωc0 and Ξc0 baryon lifetimes using hadronic b-baryon decays

    , Journal of High Energy Physics, Vol: 2025

    The lifetimes of the Ωc0 and Ξc0 baryons are measured using a pp collision dataset collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb<sup>−1</sup>. The charm baryons are produced in the fully reconstructed decay chains Ωb−→Ωc0→pK−K−π+π− and Ξb−→Ξc0→pK−K−π+π−. The measurement uses topologically and kinematically similar B<sup>−</sup> → D<sup>0</sup>(→ K<sup>−</sup>K<sup>+</sup>π<sup>−</sup>π<sup>+</sup>)π<sup>−</sup> decays for normalisation. The measured lifetimes are (Formula presented.) where the first uncertainty is statistical, the second systematic and the third due to the uncertainty of the D<sup>0</sup> lifetime. These results are consistent with previous measurements performed by the LHCb experiment.
  • Journal article
    Abbaslu S, Abed Abud A, Acciarri R, Accorsi LP, Acero MA, Adames MR, Adamov G, Adamowski M, Adriano C, Akbar F, Alemanno F, Alex NS, Allison K, Alrashed M, Alton A, Alvarez R, Alves T, Aman A, Amar H, Amedo P, Anderson J, Andrade DA, Andreopoulos C, Andreotti M, Andrews MP, Andrianala F, Andringa S, Anjarazafy F, Ansarifard S, Antic D, Antoniassi M, Aranda-Fernandez A, Arellano L, Arrieta Diaz E, Arroyave MA, Arteropons M, Asaadi J, Ascencio M, Ashkenazi A, Asner D, Asquith L, Atkin E, Auguste D, Aurisano A, Aushev V, Autiero D, Ávila Gómez D, Azam MB, Azfar F, Back A, Back JJ, Bae Y, Bagaturia I, Bagby L, Baigarashev D, Balasubramanian S, Balboni A, Baldi P, Baldini W, Baldonedo J, Baller B, Bambah B, Barao F, Barbu D, Barenboim G, Barham Alzás P, Barker GJ, Barkhouse W, Barr G, Barros A, Barros N, Barrow D, Barrow JL, Basharina-Freshville A, Bashyal A, Basque V, Bassani M, Basu D, Batchelor C, Bathe-Peters L, Battat JBR, Battisti F, Bautista J, Bay F, Bazo Alba JLL, Beacom JF, Bechetoille E, Behera B, Belchior E, Bell B, Bell G, Bellantoni L, Bellettini G, Bellini V, Beltramello O, Belyaev A, Benitez Montiel C, Benjamin D, Bento Neves F, Berger Jet al., 2025,

    Spatial and temporal evaluations of the liquid argon purity in ProtoDUNE-SP

    , Journal of Instrumentation, Vol: 20

    Liquid argon time projection chambers (LArTPCs) rely on highly pure argon to ensure that ionization electrons produced by charged particles reach readout arrays. ProtoDUNE Single-Phase (ProtoDUNE-SP) was an approximately 700-ton liquid argon detector intended to prototype the Deep Underground Neutrino Experiment (DUNE) Far Detector Horizontal Drift module. It contains two drift volumes bisected by the cathode plane assembly, which is biased to create an almost uniform electric field in both volumes. The DUNE Far Detector modules must have robust cryogenic systems capable of filtering argon and supplying the TPC with clean liquid. This paper will explore comparisons of the argon purity measured by the purity monitors with those measured using muons in the TPC from October 2018 to November 2018. A new method is introduced to measure the liquid argon purity in the TPC using muons crossing both drift volumes of ProtoDUNE-SP. For extended periods on the timescale of weeks, the drift electron lifetime was measured to be above 30 ms using both systems. A particular focus will be placed on the measured purity of argon as a function of position in the detector.
  • Journal article
    Chekhovsky V, Hayrapetyan A, Makarenko V, Tumasyan A, Adam W, Andrejkovic JW, Benato L, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Hussain PS, Jeitler M, Krammer N, Li A, Liko D, Mikulec I, Schieck J, Schoefbeck R, Schwarz D, Sonawane M, Waltenberger W, Wulz C-E, Janssen T, Kwon H, Van Laer T, Van Mechelen P, Breugelmans N, D'Hondt J, Dansana S, De Moor A, Delcourt M, Heyen F, Hong Y, Lowette S, Makarenko I, Mueller D, Tavernier S, Tytgat M, Van Onsem GP, Van Putte S, Vannerom D, Bilin B, Clerbaux B, Das AK, De Bruyn I, De Lentdecker G, Evard H, Favart L, Gianneios P, Khalilzadeh A, Khan FA, Lee K, Malara A, Shahzad MA, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, De Coen M, Dobur D, Gokbulut G, Knolle J, Lambrecht L, Marckx D, Skovpen K, Van den Bossche N, van der Linden J, Wezenbeek L, Bein S, Benecke A, Bethani A, Bruno G, Caputo C, De Jeneret JDF, Delaere C, Donertas IS, Giammanco A, Guzel AO, Jain S, Lemaitre V, Lidrych J, Mastrapasqua P, Tran TT, Turkcapar S, Alves GA, Coelho E, Correia Silva G, Hensel C, Menezes De Oliveira T, Mora Herrera C, Rebello Teles P, Soeiro M, Tonelli Manganote EJ, Vilela Pereira A, Alda Junior WL, Barroso Ferreira Filho M, Brandao Malbouisson H, Carvalho W, Chinellato J, Da Costa EM, Da Silveira GG, De Jesus Damiao D, Fonseca De Souza S, Gomes De Souza R, Laux Kuhn T, Macedo M, Martins J, Mota Amarilo K, Mundim L, Nogima H, Pinheiro JP, Santoro A, Sznajder A, Thiel M, Bernardes CA, Calligaris L, Fernandez Perez Tomei TR, Gregores EM, Maietto Silverio I, Mercadante PG, Novaes SF, Orzari B, Padula SS, Aleksandrov A, Antchev G, Hadjiiska R, Iaydjiev P, Misheva M, Shopova M, Sultanov G, Dimitrov A, Litov L, Pavlov B, Petkov P, Petrov A, Shumka E, Keshri S, Laroze D, Thakur S, Cheng T, Javaid T, Yuan L, Hu Z, Liang Z, Liu J, Chen GM, Chen HS, Chen M, Iemmi F, Jiang CH, Kapoor A, Liao H, Liu Z-A, Sharma R, Song JN, Tao J, Wang C, Wang J, Wang Z, Zhang H, Zhao J, Agapitos A, Ban Y, De Oliveira ACA, Deng S, Guo B, Jiang Cet al., 2025,

    Determination of the strong coupling and its running from measurements of inclusive jet production

    , PHYSICS LETTERS B, Vol: 868, ISSN: 0370-2693
  • Journal article
    Hayrapetyan A, Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Hussain PS, Jeitler M, Krammer N, Li A, Liko D, Mikulec I, Schieck J, Schoefbeck R, Schwarz D, Sonawane M, Templ S, Waltenberger W, Wulz C-E, Darwish MR, Janssen T, Van Mechelen P, Bols ES, D'Hondt J, Dansana S, De Moor A, Delcourt M, El Faham H, Lowette S, Makarenko I, Mueller D, Sahasransu AR, Tavernier S, Tytgat M, Van Putte S, Vannerom D, Clerbaux B, De Lentdecker G, Favart L, Hohov D, Jaramillo J, Khalilzadeh A, Lee K, Mahdavikhorrami M, Malara A, Paredes S, Petre L, Postiau N, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, De Coen M, Dobur D, Hong Y, Knolle J, Lambrecht L, Mestdach G, Rendon C, Samalan A, Skovpen K, Van den Bossche N, Wezenbeek L, Benecke A, Bruno G, Caputo C, Delaere C, Donertas IS, Giammanco A, Jaffel K, Jain S, Lemaitre V, Lidrych J, Mastrapasqua P, Mondal K, Tran TT, Wertz S, Alves GA, Coelho E, Hensel C, Menezes De Oliveira T, Moraes A, Rebello Teles P, Soeiro M, Alda Junior WL, Alves Gallo Pereira M, Barroso Ferreira Filho M, Brandao Malbouisson H, Carvalho W, Chinellato J, Da Costa EM, Da Silveira GG, De Jesus Damiao D, Fonseca De Souza S, Martins J, Mora Herrera C, Mota Amarilo K, Mundim L, Nogima H, Santoro A, Sznajder A, Thiel M, Vilela Pereira A, Bernardes CA, Calligaris L, Fernandez Perez Tomei TR, Gregores EM, Mercadante PG, Novaes SF, Orzari B, Padula SS, Aleksandrov A, Antchev G, Hadjiiska R, Iaydjiev P, Misheva M, Shopova M, Sultanov G, Dimitrov A, Litov L, Pavlov B, Petkov P, Petrov A, Shumka E, Keshri S, Thakur S, Cheng T, Guo Q, Javaid T, Mittal M, Yuan L, Hu Z, Liu J, Yi K, Chen GM, Chen HS, Chen M, Iemmi F, Jiang CH, Kapoor A, Liao H, Liu Z-A, Monti F, Shahzad MA, Sharma R, Song JN, Tao J, Wang C, Wang Z, Zhang H, Agapitos A, Ban Y, Levin A, Li C, Li Q, Mao Y, Qian SJ, Sun X, Wang D, Yang H, Zhang L, Zhou C, You Z, Lu N, Bauer G, Gao X, Leggat D, Okawa H, Zhang Y, Lin Z, Lu C, Xiao M, Avila C, Barbosa Trujillo DAet al., 2025,

    Multiplicity dependence of charm baryon and charm meson production in pPb collisions at √S<sub>NN</sub>=8.16 TeV

    , PHYSICS LETTERS B, Vol: 868, ISSN: 0370-2693
  • Journal article
    Hayrapetyan A, Makarenko V, Tumasyan A, Adam W, Andrejkovic JW, Benato L, Bergauer T, Damanakis K, Dragicevic M, Giordano C, Hussain PS, Jeitler M, Krammer N, Li A, Liko D, Mikulec I, Schieck J, Schöfbeck R, Schwarz D, Shooshtari M, Sonawane M, Waltenberger W, Wulz C-E, Janssen T, Kwon H, Ocampo Henao D, Van Laer T, Van Mechelen P, Bierkens J, Breugelmans N, D'Hondt J, Dansana S, De Moor A, Delcourt M, Heyen F, Hong Y, Kashko P, Lowette S, Makarenko I, Müller D, Song J, Tavernier S, Tytgat M, Van Onsem GP, Van Putte S, Vannerom D, Bilin B, Clerbaux B, Das AK, De Bruyn I, De Lentdecker G, Evard H, Favart L, Gianneios P, Khalilzadeh A, Khan FA, Malara A, Shahzad MA, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, Zhang F, De Coen M, Dobur D, Gokbulut G, Knolle J, Lambrecht L, Marckx D, Skovpen K, Van Den Bossche N, van der Linden J, Vandenbroeck J, Wezenbeek L, Bein S, Benecke A, Bethani A, Bruno G, Cappati A, De Favereau De Jeneret J, Delaere C, Giammanco A, Guzel AO, Lemaitre V, Lidrych J, Malek P, Mastrapasqua P, Turkcapar S, Alves GA, Barroso Ferreira Filho M, Coelho E, Hensel C, Menezes De Oliveira T, Mora Herrera C, Rebello Teles P, Soeiro M, Tonelli Manganote EJ, Vilela Pereira A, Aldá Júnior WL, Brandao Malbouisson H, Carvalho W, Chinellato J, Costa Reis M, Da Costa EM, Da Silveira GG, De Jesus Damiao D, Fonseca De Souza S, Gomes De Souza R, Jesus SS, Laux Kuhn T, Macedo M, Mota Amarilo K, Mundim L, Nogima H, Pinheiro JP, Santoro A, Sznajder A, Thiel M, Torres Da Silva De Araujo F, Bernardes CA, Tomei TRFP, Gregores EM, Lopes Da Costa B, Maietto Silverio I, Mercadante PG, Novaes SF, Orzari B, Padula SS, Scheurer V, Aleksandrov A, Antchev G, Danev P, Hadjiiska R, Iaydjiev P, Misheva M, Shopova M, Sultanov G, Dimitrov A, Litov L, Pavlov B, Petkov P, Petrov A, Keshri S, Laroze D, Thakur S, Brooks W, Cheng T, Javaid T, Wang L, Yuan L, Hu Z, Liang Z, Liu J, Wang X, Chen GM, Chen HS, Chen M, Chen Y, Hou Q, Hou X, Iemmi F, Jiang CH, Kapoor A, Liao H, Liu G, Liuet al., 2025,

    Measurement of WWZ and ZH Production Cross Sections at sqrt[s]=13 and 13.6 TeV.

    , Phys Rev Lett, Vol: 135

    A measurement is presented of the cross section in proton-proton collisions for the production of two W bosons and one Z boson. It is based on data recorded by the CMS experiment at the CERN LHC at center-of-mass energies sqrt[s]=13 and 13.6 TeV, corresponding to an integrated luminosity of 200  fb^{-1}. Events with four charged leptons (electrons or muons) in the final state are selected. Both nonresonant WWZ production and ZH production, with the Higgs boson decaying into two W bosons, are reported. For the first time, the two processes are measured separately in a simultaneous fit. Combining the two modes, signal strengths relative to the standard model (SM) predictions of 0.75_{-0.29}^{+0.34} and 1.74_{-0.60}^{+0.71} are measured for sqrt[s]=13 and 13.6 TeV, respectively. The observed (expected) significance for the triboson signal is 3.8 (2.5) standard deviations for sqrt[s]=13.6  TeV, thus providing the first evidence for triboson production at this center-of-mass energy. Combining the two modes and the two center-of-mass energies, the inclusive signal strength relative to the SM prediction is measured to be 1.03_{-0.28}^{+0.31}, with an observed (expected) significance of 4.5 (5.0) standard deviations.
  • Journal article
    Chekhovsky V, Hayrapetyan A, Makarenko V, Tumasyan A, Adam W, Andrejkovic JW, Benato L, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Hussain PS, Jeitler M, Krammer N, Li A, Liko D, Mikulec I, Schieck J, Schöfbeck R, Schwarz D, Sonawane M, Waltenberger W, Wulz C-E, Janssen T, Kwon H, Van Laer T, Van Mechelen P, Breugelmans N, D'Hondt J, Dansana S, De Moor A, Delcourt M, Heyen F, Hong Y, Lowette S, Makarenko I, Müller D, Tavernier S, Tytgat M, Van Onsem GP, Van Putte S, Vannerom D, Bilin B, Clerbaux B, Das AK, De Bruyn I, De Lentdecker G, Evard H, Favart L, Gianneios P, Khalilzadeh A, Khan FA, Lee K, Malara A, Shahzad MA, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, De Coen M, Dobur D, Gokbulut G, Knolle J, Lambrecht L, Marckx D, Mota Amarilo K, Skovpen K, Van Den Bossche N, van der Linden J, Wezenbeek L, Bein S, Benecke A, Bethani A, Bruno G, Caputo C, De Favereau De Jeneret J, Delaere C, Donertas IS, Giammanco A, Guzel AO, Jain S, Lemaitre V, Lidrych J, Mastrapasqua P, Tran TT, Turkcapar S, Alves GA, Coelho E, Correia Silva G, Hensel C, Menezes De Oliveira T, Mora Herrera C, Rebello Teles P, Soeiro M, Tonelli Manganote EJ, Vilela Pereira A, Aldá Júnior WL, Barroso Ferreira Filho M, Brandao Malbouisson H, Carvalho W, Chinellato J, Da Costa EM, Da Silveira GG, De Jesus Damiao D, Fonseca De Souza S, Gomes De Souza R, Laux Kuhn T, Macedo M, Martins J, Mundim L, Nogima H, Pinheiro JP, Santoro A, Sznajder A, Thiel M, Bernardes CA, Calligaris L, Tomei TRFP, Gregores EM, Maietto Silverio I, Mercadante PG, Novaes SF, Orzari B, Padula SS, Aleksandrov A, Antchev G, Hadjiiska R, Iaydjiev P, Misheva M, Shopova M, Sultanov G, Dimitrov A, Litov L, Pavlov B, Petkov P, Petrov A, Shumka E, Keshri S, Laroze D, Thakur S, Cheng T, Javaid T, Yuan L, Hu Z, Liang Z, Liu J, Chen GM, Chen HS, Chen M, Iemmi F, Jiang CH, Kapoor A, Liao H, Liu Z-A, Sharma R, Song JN, Tao J, Wang C, Wang J, Wang Z, Zhang H, Zhao J, Agapitos A, Ban Y, Carvalho Antunes De Oliveira A, Deng S, Guo Bet al., 2025,

    Observation of the Charged-Particle Multiplicity Dependence of σ_{ψ(2S)}/σ_{J/ψ} in p-Pb Collisions at 8.16 TeV.

    , Phys Rev Lett, Vol: 135

    Bound states of charm and anticharm quarks, known as charmonia, have a rich spectroscopic structure that can be used to probe the dynamics of hadron production in high-energy hadron collisions. Here, the cross section ratio of excited (ψ(2S)) and ground state (J/ψ) vector mesons is measured as a function of the charged-particle multiplicity in proton-lead (pPb) collisions at a center-of-mass (CM) energy per nucleon pair of 8.16 TeV. The data corresponding to an integrated luminosity of 175  nb^{-1} were collected using the CMS detector. The ratio is measured separately for prompt and nonprompt charmonia in the transverse momentum range 6.5<p_{T}<30  GeV and in four rapidity ranges spanning -2.865<y_{CM}<1.935. For the first time, a statistically significant multiplicity dependence of the prompt cross section ratio is observed in proton-nucleus collisions. There is no clear rapidity dependence in the ratio. The prompt measurements are compared with a theoretical model which includes interactions with nearby particles during the evolution of the system. These results provide additional constraints on hadronization models of heavy quarks in nuclear collisions.
  • Journal article
    CMS Collaboration, 2025,

    Elliptic anisotropy measurement of the f0(980) hadron in proton-lead collisions and evidence for its quark-antiquark composition.

    , Nat Commun, Vol: 16

    Despite the f0(980) hadron having been discovered half a century ago, the question about its quark content has not been settled: it might be an ordinary quark-antiquark ( q q ¯ ) meson, a tetraquark ( q q ¯ q q ¯ ) exotic state, a kaon-antikaon ( K K ¯ ) molecule, or a quark-antiquark-gluon ( q q ¯ g ) hybrid. This paper reports strong evidence that the f0(980) state is an ordinary q q ¯ meson, inferred from the scaling of elliptic anisotropies (v2) with the number of constituent quarks (nq), as empirically established using conventional hadrons in relativistic heavy ion collisions. The f0(980) state is reconstructed via its dominant decay channel f0(980) → π+π-, in proton-lead collisions recorded by the CMS experiment at the LHC, and its v2 is measured as a function of transverse momentum (pT). It is found that the nq = 2 ( q q ¯ state) hypothesis is favored over nq = 4 ( q q ¯ q q ¯ or K K ¯ states) by 7.7, 6.3, or 3.1 standard deviations in the pT < 10, 8, or 6 GeV/c ranges, respectively, and over nq = 3 ( q q ¯ g hybrid state) by 3.5 standard deviations in the pT < 8 GeV/c range. This result represents the first determination of the quark content of the f0(980) state, made possible by using a novel approach, and paves the way for similar studies of other exotic hadron candidates.
  • Journal article
    Mckean J, Gonzalez-Jimenez R, Kabirnezhad M, Udias JM, Uchida Yet al., 2025,

    Implementation of a relativistic distorted wave impulse approximation model into the NEUT event generator

    , PHYSICAL REVIEW D, Vol: 112, ISSN: 2470-0010
  • Journal article
    Collaboration TC, 2025,

    Observation of a pseudoscalar excess at the top quark pair production threshold.

    , Rep Prog Phys, Vol: 88

    A search for resonances in top quark pair (tt-) production in final states with two charged leptons and multiple jets is presented, based on proton-proton collision data collected by the CMS experiment at the CERN LHC ats=13TeV, corresponding to 138 fb-1. The analysis explores the invariant mass of thett-system and two angular observables that provide direct access to the correlation of top quark and antiquark spins. A significant excess of events is observed near the kinematictt-threshold compared to the non-resonant production predicted by fixed-order perturbative quantum chromodynamics (pQCD). The observed enhancement is consistent with the production of a color-singlet pseudoscalar (1S0[1]) quasi-bound toponium state, as predicted by non-relativistic quantum chromodynamics. Using a simplified model for1S0[1]toponium, the cross section of the excess above the pQCD prediction is measured to be8.8-1.4+1.2pb.
  • Journal article
    Abratenko P, Andrade Aldana D, Arellano L, Asaadi J, Ashkenazi A, Balasubramanian S, Baller B, Barnard A, Barr G, Barrow D, Barrow J, Basque V, Bateman J, Benevides Rodrigues O, Berkman S, Bhat A, Bhattacharya M, Bishai M, Blake A, Bogart B, Bolton T, Brunetti MB, Camilleri L, Caratelli D, Cavanna F, Cerati G, Chappell A, Chen Y, Conrad JM, Convery M, Cooper-Troendle L, Crespo-Anadón JI, Cross R, Del Tutto M, Dennis SR, Detje P, Diurba R, Djurcic Z, Duffy K, Dytman S, Eberly B, Englezos P, Ereditato A, Evans JJ, Fang C, Foreman W, Fleming BT, Franco D, Furmanski AP, Gao F, Garcia-Gamez D, Gardiner S, Ge G, Gollapinni S, Gramellini E, Green P, Greenlee H, Gu L, Gu W, Guenette R, Guzowski P, Hagaman L, Handley MD, Hen O, Hilgenberg C, Horton-Smith GA, Hussain A, Irwin B, Ismail MS, James C, Ji X, Jo JH, Johnson RA, Jwa Y-J, Kalra D, Karagiorgi G, Ketchum W, Kirby M, Kobilarcik T, Lane N, Li J-Y, Li Y, Lin K, Littlejohn BR, Liu L, Louis WC, Luo X, Mahmud T, Mariani C, Marsden D, Marshall J, Martinez N, Martinez Caicedo DA, Martynenko S, Mastbaum A, Mawby I, McConkey N, Mellet L, Mendez J, Micallef J, Mogan A, Mohayai T, Mooney M, Moor AF, Moore CD, Mora Lepin L, Moudgalya MM, Mulleriababu S, Naples D, Navrer-Agasson A, Nayak N, Nebot-Guinot M, Nguyen C, Nowak J, Oza N, Palamara O, Pallat N, Paolone V, Papadopoulou A, Papavassiliou V, Parkinson HB, Pate SF, Patel N, Pavlovic Z, Piasetzky E, Pletcher K, Pophale I, Qian X, Raaf JL, Radeka V, Rafique A, Reggiani-Guzzo M, Rodriguez Rondon J, Rosenberg M, Ross-Lonergan M, Safa I, Schmitz DW, Schukraft A, Seligman W, Shaevitz MH, Sharankova R, Shi J, Snider EL, Soderberg M, Söldner-Rembold S, Spitz J, Stancari M, St John J, Strauss T, Szelc AM, Taniuchi N, Terao K, Thorpe C, Torbunov D, Totani D, Toups M, Trettin A, Tsai Y-T, Tyler J, Uchida MA, Usher T, Viren B, Wang J, Weber M, Wei H, White AJ, Wolbers S, Wongjirad T, Wospakrik M, Wresilo K, Wu W, Yandel E, Yang T, Yates LE, Yu HW, Zeller GP, Zennamo J, Zhang C, MicroBooNEet al., 2025,

    Search for an Anomalous Production of Charged-Current ν_{e} Interactions without Visible Pions across Multiple Kinematic Observables in MicroBooNE.

    , Phys Rev Lett, Vol: 135

    This Letter presents an investigation of low-energy electron-neutrino interactions in the Fermilab Booster Neutrino Beam by the MicroBooNE experiment, motivated by the excess of electron-neutrino-like events observed by the MiniBooNE experiment. This is the first measurement to use data from all five years of operation of the MicroBooNE experiment, corresponding to an exposure of 1.11×10^{21} protons on target, a 70% increase on past results. Two samples of electron neutrino interactions without visible pions are used, one with visible protons and one without any visible protons. The MicroBooNE data show reasonable agreement with the nominal prediction, with p values ≥26.7% when the two ν_{e} samples are combined, though the prediction exceeds the data in limited regions of phase space. The data are further compared to two empirical models that modify the predicted rate of electron-neutrino interactions in different variables in the simulation to match the unfolded MiniBooNE low energy excess. In the first model, this unfolding is performed as a function of electron neutrino energy, while the second model aims to match the observed shower energy and angle distributions of the MiniBooNE excess. This measurement excludes an electronlike interpretation of the MiniBooNE excess based on these models at >99%  CL_{s} in all kinematic variables.
  • Journal article
    Bal A, Curtis E, Magnan A-M, Maier B, Robens T, Wardle Net al., 2025,

    Search for additional scalar bosons within the Inert Doublet Model in a final state with two leptons at the FCC-ee

    , EUROPEAN PHYSICAL JOURNAL C, Vol: 85, ISSN: 1434-6044
  • Journal article
    Chekhovsky V, Hayrapetyan A, Makarenko V, Tumasyan A, Adam W, Andrejkovic JW, Benato L, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Hussain PS, Jeitler M, Krammer N, Li A, Liko D, Mikulec I, Schieck J, Schöfbeck R, Schwarz D, Sonawane M, Waltenberger W, Wulz C-E, Janssen T, Kwon H, Van Laer T, Van Mechelen P, Breugelmans N, DHondt J, Dansana S, De Moor A, Delcourt M, Heyen F, Hong Y, Lowette S, Makarenko I, Müller D, Tavernier S, Tytgat M, Van Onsem GP, Van Putte S, Vannerom D, Bilin B, Clerbaux B, Das AK, De Bruyn I, De Lentdecker G, Evard H, Favart L, Gianneios P, Khalilzadeh A, Khan FA, Lee K, Malara A, Shahzad MA, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, De Coen M, Dobur D, Gokbulut G, Knolle J, Lambrecht L, Marckx D, Skovpen K, Van Den Bossche N, van der Linden J, Wezenbeek L, Bein S, Benecke A, Bethani A, Bruno G, Caputo C, De Favereau De Jeneret J, Delaere C, Donertas IS, Giammanco A, Guzel AO, Jain S, Lemaitre V, Lidrych J, Mastrapasqua P, Tran TT, Turkcapar S, Alves GA, Coelho E, Correia Silva G, Hensel C, Menezes De Oliveira T, Mora Herrera C, Rebello Teles P, Soeiro M, Tonelli Manganote EJ, Vilela Pereira A, Aldá Júnior WL, Barroso Ferreira Filho M, Brandao Malbouisson H, Carvalho W, Chinellato J, Da Costa EM, Da Silveira GG, De Jesus Damiao D, Fonseca De Souza S, Gomes De Souza R, Laux Kuhn T, Macedo M, Martins J, Mota Amarilo K, Mundim L, Nogima H, Pinheiro JP, Santoro A, Sznajder A, Thiel M, Bernardes CA, Calligaris L, Fernandez Perez Tomei TR, Gregores EM, Maietto Silverio I, Mercadante PG, Novaes SF, Orzari B, Padula SS, Scheurer V, Aleksandrov A, Antchev G, Hadjiiska R, Iaydjiev P, Misheva M, Shopova M, Sultanov G, Dimitrov A, Litov L, Pavlov B, Petkov P, Petrov A, Shumka E, Keshri S, Laroze D, Thakur S, Vega Sepulveda VN, Cheng T, Javaid T, Yuan L, Hu Z, Liang Z, Liu J, Chen GM, Chen HS, Chen M, Iemmi F, Jiang CH, Kapoor A, Liao H, Liu Z-A, Sharma R, Song JN, Tao J, Wang C, Wang J, Wang Z, Zhang H, Zhao J, Agapitos A, Ban Yet al., 2025,

    Search for vector-like leptons with long-lived particle decays in the CMS muon system in proton-proton collisions at $$\sqrt{\text{s}}$$ = 13 TeV

    , Journal of High Energy Physics, Vol: 2025

    <jats:title>A<jats:sc>bstract</jats:sc> </jats:title> <jats:p>A first search is presented for vector-like leptons (VLLs) exclusively decaying into a light long-lived pseudoscalar boson and a standard model <jats:italic>τ</jats:italic> lepton. The pseudoscalar boson is assumed to have a mass below the <jats:italic>τ</jats:italic> <jats:sup>+</jats:sup> <jats:italic>τ</jats:italic> <jats:sup> <jats:italic>−</jats:italic> </jats:sup> threshold, so that it decays exclusively into two photons. It is identified using the CMS muon system. The analysis is carried out using a data set of proton-proton collisions at a center-of-mass energy of 13 TeV collected by the CMS experiment in 2016–2018, corresponding to an integrated luminosity of 138 fb<jats:sup> <jats:italic>−</jats:italic>1</jats:sup>. Selected events contain at least one pseudoscalar boson decaying electromagnetically in the muon system and at least one hadronically decaying <jats:italic>τ</jats:italic> lepton. No significant excess of data events is observed compared to the background expectation. Upper limits are set at 95% confidence level on the vector-like lepton production cross section as a function of the VLL mass and the pseudoscalar boson mean proper decay length. The observed and expected exclusion ranges of the VLL mass extend up to 700 and 670 GeV, respectively, depending on the pseudoscalar boson lifetime.</jats:p>
  • Journal article
    Chekhovsky V, Hayrapetyan A, Makarenko V, Tumasyan A, Adam W, Andrejkovic JW, Benato L, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Hussain PS, Jeitler M, Krammer N, Li A, Liko D, Mikulec I, Schieck J, Schöfbeck R, Schwarz D, Sonawane M, Waltenberger W, Wulz C-E, Janssen T, Van Laer T, Van Mechelen P, Breugelmans N, D'Hondt J, Dansana S, De Moor A, Delcourt M, Heyen F, Hong Y, Lowette S, Makarenko I, Müller D, Tavernier S, Tytgat M, Van Onsem GP, Van Putte S, Vannerom D, Bilin B, Clerbaux B, Das AK, De Bruyn I, De Lentdecker G, Evard H, Favart L, Gianneios P, Khalilzadeh A, Khan FA, Lee K, Malara A, Shahzad MA, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, De Coen M, Dobur D, Gokbulut G, Knolle J, Lambrecht L, Marckx D, Mota Amarilo K, Skovpen K, Van Den Bossche N, van der Linden J, Wezenbeek L, Bein S, Benecke A, Bethani A, Bruno G, Caputo C, De Favereau De Jeneret J, Delaere C, Donertas IS, Giammanco A, Guzel AO, Jain S, Lemaitre V, Lidrych J, Mastrapasqua P, Tran TT, Turkcapar S, Alves GA, Coelho E, Correia Silva G, Hensel C, Menezes De Oliveira T, Mora Herrera C, Rebello Teles P, Soeiro M, Tonelli Manganote EJ, Vilela Pereira A, Aldá Júnior WL, Barroso Ferreira Filho M, Brandao Malbouisson H, Carvalho W, Chinellato J, Da Costa EM, Da Silveira GG, De Jesus Damiao D, Fonseca De Souza S, Gomes De Souza R, Laux Kuhn T, Macedo M, Martins J, Mundim L, Nogima H, Pinheiro JP, Santoro A, Sznajder A, Thiel M, Bernardes CA, Calligaris L, Tomei TRFP, Gregores EM, Maietto Silverio I, Mercadante PG, Novaes SF, Orzari B, Padula SS, Aleksandrov A, Antchev G, Hadjiiska R, Iaydjiev P, Misheva M, Shopova M, Sultanov G, Dimitrov A, Litov L, Pavlov B, Petkov P, Petrov A, Shumka E, Keshri S, Laroze D, Thakur S, Cheng T, Javaid T, Yuan L, Hu Z, Liang Z, Liu J, Chen GM, Chen HS, Chen M, Iemmi F, Jiang CH, Kapoor A, Liao H, Liu Z-A, Sharma R, Song JN, Tao J, Wang C, Wang J, Wang Z, Zhang H, Zhao J, Agapitos A, Ban Y, Carvalho Antunes De Oliveira A, Deng S, Guo B, Jianget al., 2025,

    Evidence for Similar Collectivity of High Transverse-Momentum Particles in p-Pb and Pb-Pb Collisions.

    , Phys Rev Lett, Vol: 135

    Charged hadron elliptic anisotropies (v_{2}) are presented over a wide transverse momentum (p_{T}) range for proton-lead (pPb) and lead-lead (PbPb) collisions at nucleon-nucleon center-of-mass energies of 8.16 and 5.02 TeV, respectively. The data were recorded by the CMS experiment and correspond to integrated luminosities of 186 and 0.607  nb^{-1} for the pPb and PbPb systems, respectively. A four-particle cumulant analysis is performed using subevents separated in pseudorapidity to effectively suppress noncollective effects. At high p_{T} (p_{T}>8  GeV), significant positive v_{2} values that are similar between pPb and PbPb collisions at comparable charged particle multiplicities are observed. This observation suggests a common origin for the multiparticle collectivity for high-p_{T} particles in the two systems.
  • Journal article
    Hayrapetyan A, Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Hussain PS, Jeitler M, Krammer N, Li A, Liko D, Mikulec I, Schieck J, Schöfbeck R, Schwarz D, Sonawane M, Templ S, Waltenberger W, Wulz C-E, Darwish MR, Janssen T, Van Mechelen P, Bols ES, DHondt J, Dansana S, De Moor A, Delcourt M, Lowette S, Makarenko I, Müller D, Tavernier S, Tytgat M, Van Onsem GP, Van Putte S, Vannerom D, Clerbaux B, Das AK, De Lentdecker G, Evard H, Favart L, Gianneios P, Hohov D, Jaramillo J, Khalilzadeh A, Khan FA, Lee K, Mahdavikhorrami M, Malara A, Paredes S, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, De Coen M, Dobur D, Hong Y, Knolle J, Lambrecht L, Mestdach G, Mota Amarilo K, Rendón C, Samalan A, Skovpen K, Van Den Bossche N, van der Linden J, Wezenbeek L, Benecke A, Bethani A, Bruno G, Caputo C, Delaere C, Donertas IS, Giammanco A, Jain S, Lemaitre V, Lidrych J, Mastrapasqua P, Tran TT, Wertz S, Alves GA, Coelho E, Hensel C, Menezes De Oliveira T, Moraes A, Rebello Teles P, Soeiro M, Aldá Júnior WL, Alves Gallo Pereira M, Barroso Ferreira Filho M, Brandao Malbouisson H, Carvalho W, Chinellato J, Da Costa EM, Da Silveira GG, De Jesus Damiao D, Fonseca De Souza S, Gomes De Souza R, Martins J, Mora Herrera C, Mundim L, Nogima H, Pinheiro JP, Santoro A, Sznajder A, Thiel M, Vilela Pereira A, Bernardes CA, Calligaris L, Tomei TRFP, Gregores EM, Mercadante PG, Novaes SF, Orzari B, Padula SS, Aleksandrov A, Antchev G, Hadjiiska R, Iaydjiev P, Misheva M, Shopova M, Sultanov G, Dimitrov A, Litov L, Pavlov B, Petkov P, Petrov A, Shumka E, Keshri S, Thakur S, Cheng T, Javaid T, Yuan L, Hu Z, Liu J, Yi K, Chen GM, Chen HS, Chen M, Iemmi F, Jiang CH, Kapoor A, Liao H, Liu Z-A, Sharma R, Song JN, Tao J, Wang C, Wang J, Wang Z, Zhang H, Agapitos A, Ban Y, Levin A, Li C, Li Q, Mao Y, Qian SJ, Sun X, Wang D, Yang H, Zhang L, Zhou C, You Z, Jaffel K, Lu N, Bauer G, Gao X, Lin Z, Lu C, Xiao M, Avila C, Barbosa Trujillo DA, Cabrera A, Florezet al., 2025,

    Search for flavor-changing neutral current interactions of the top quark mediated by a Higgs boson in proton-proton collisions at 13 TeV

    , Physical Review D, Vol: 112, ISSN: 2470-0010

    <jats:p>A search for flavor-changing neutral current interactions of the top quark (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mi>t</a:mi></a:mrow></a:math>) and the Higgs boson (<c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mi>H</c:mi></c:math>) is presented. The search is based on proton-proton collision data collected in 2016–2018 at a center-of-mass energy of 13 TeV with the CMS detector at the LHC, and corresponding to an integrated luminosity of <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mn>138</e:mn><e:mtext> </e:mtext><e:mtext> </e:mtext><e:msup><e:mi>fb</e:mi><e:mrow><e:mo>−</e:mo><e:mn>1</e:mn></e:mrow></e:msup></e:math>. Events containing a pair of leptons with the same-sign electric charge and at least one jet are considered. The results are used to constrain the branching fraction (<g:math xmlns:g="http://www.w3.org/1998/Math/MathML" display="inline"><g:mi mathvariant="script">B</g:mi></g:math>) of the top quark decaying to a Higgs boson and an up (<j:math xmlns:j="http://www.w3.org/1998/Math/MathML" display="inline"><j:mi>u</j:mi></j:math>) or charm (<l:math xmlns:l="http://www.w3.org/1998/Math/MathML" display="inline"><l:mi>c</l:mi></l:math>) quark. No significant excess above the estimated background was found. The observed (expected) upper limits at a 95% confidence level are found to be 0.072% (0.059%) for <n:math xmlns:n="http://www.w3.org/1998/Math/MathML" display="inline"><n:mrow><n:mi mathvariant="script">
  • Journal article
    Elder B, Mentasti G, Pasatembou E, Baynham CFA, Buchmueller O, Contaldi CR, de Rham C, Hobson R, Tolley AJet al., 2025,

    Prospects for detecting new dark physics with the next generation of atomic clocks

    , Physical Review D, Vol: 112, ISSN: 2470-0010

    Wide classes of new fundamental physics theories cause apparent variations in particle mass ratios in space and time. In theories that violate the weak equivalence principle (EP), those variations are not uniform across all particles and may be detected with atomic and molecular clock frequency comparisons. In this work we explore the potential to detect those variations with near-future clock comparisons. We begin by searching published clock data for variations in the electron-proton mass ratio. We then undertake a statistical analysis to model the noise in a variety of clock pairs that can be built in the near future according to the current state of the art, determining their sensitivity to various fundamental physics signals. Those signals are then connected to constraints on fundamental physics theories that lead directly or indirectly to an effective EP-violating, including those motivated by dark matter, dark energy, the vacuum energy problem, unification or other open questions of fundamental physics. This work results in projections for tight new bounds on fundamental physics that could be achieved with atomic and molecular clocks within the next few years. Our code for this work is packaged into a forecast tool that translates clock characteristics into bounds on fundamental physics.
  • Journal article
    Chekhovsky V, Hayrapetyan A, Makarenko V, Tumasyan A, Adam W, Andrejkovic JW, Benato L, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Hussain PS, Jeitler M, Krammer N, Li A, Liko D, Mikulec I, Schieck J, Schöfbeck R, Schwarz D, Sonawane M, Waltenberger W, Wulz C-E, Janssen T, Kwon H, Van Laer T, Van Mechelen P, Breugelmans N, DHondt J, Dansana S, De Moor A, Delcourt M, Heyen F, Hong Y, Lowette S, Makarenko I, Müller D, Tavernier S, Tytgat M, Van Onsem GP, Van Putte S, Vannerom D, Bilin B, Clerbaux B, Das AK, De Bruyn I, De Lentdecker G, Evard H, Favart L, Gianneios P, Khalilzadeh A, Khan FA, Lee K, Malara A, Shahzad MA, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, De Coen M, Dobur D, Gokbulut G, Knolle J, Lambrecht L, Marckx D, Skovpen K, Van Den Bossche N, van der Linden J, Wezenbeek L, Bein S, Benecke A, Bethani A, Bruno G, Caputo C, De Favereau De Jeneret J, Delaere C, Donertas IS, Giammanco A, Guzel AO, Jain S, Lemaitre V, Lidrych J, Mastrapasqua P, Tran TT, Turkcapar S, Alves GA, Coelho E, Correia Silva G, Hensel C, Menezes De Oliveira T, Mora Herrera C, Rebello Teles P, Soeiro M, Tonelli Manganote EJ, Vilela Pereira A, Aldá Júnior WL, Barroso Ferreira Filho M, Brandao Malbouisson H, Carvalho W, Chinellato J, Da Costa EM, Da Silveira GG, De Jesus Damiao D, Fonseca De Souza S, Gomes De Souza R, Laux Kuhn T, Macedo M, Martins J, Mota Amarilo K, Mundim L, Nogima H, Pinheiro JP, Santoro A, Sznajder A, Thiel M, Bernardes CA, Calligaris L, Fernandez Perez Tomei TR, Gregores EM, Maietto Silverio I, Mercadante PG, Novaes SF, Orzari B, Padula SS, Aleksandrov A, Antchev G, Hadjiiska R, Iaydjiev P, Misheva M, Shopova M, Sultanov G, Dimitrov A, Litov L, Pavlov B, Petkov P, Petrov A, Shumka E, Keshri S, Laroze D, Thakur S, Cheng T, Javaid T, Yuan L, Hu Z, Liang Z, Liu J, Chen GM, Chen HS, Chen M, Iemmi F, Jiang CH, Kapoor A, Liao H, Liu Z-A, Sharma R, Song JN, Tao J, Wang C, Wang J, Wang Z, Zhang H, Zhao J, Agapitos A, Ban Y, Carvalho Antunes De Oliveira Aet al., 2025,

    Search for dark matter produced in association with one or two top quarks in proton-proton collisions at $$\sqrt{\text{s}}$$ = 13 TeV

    , Journal of High Energy Physics, Vol: 2025

    <jats:title>A<jats:sc>bstract</jats:sc> </jats:title> <jats:p>A search is performed for dark matter (DM) produced in association with a single top quark or a pair of top quarks using the data collected with the CMS detector at the LHC from proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to 138 fb<jats:sup> <jats:italic>−</jats:italic>1</jats:sup> of integrated luminosity. An excess of events with a large imbalance of transverse momentum is searched for across 0, 1 and 2 lepton final states. Novel multivariate techniques are used to take advantage of the differences in kinematic properties between the two DM production mechanisms. No significant deviations with respect to the standard model predictions are observed. The results are interpreted considering a simplified model in which the mediator is either a scalar or pseudoscalar particle and couples to top quarks and to DM fermions. Axion-like particles that are coupled to top quarks and DM fermions are also considered. Expected exclusion limits of 410 and 380 GeV for scalar and pseudoscalar mediator masses, respectively, are set at the 95% confidence level. A DM particle mass of 1 GeV is assumed, with mediator couplings to fermions and DM particles set to unity. A small signal-like excess is observed in data, with the largest local significance observed to be 1.9 standard deviations for the 150 GeV pseudoscalar mediator hypothesis. Because of this excess, mediator masses are only excluded below 310 (320) GeV for the scalar (pseudoscalar) mediator. The results are also translated into model-independent 95% confidence level upper limits on the visible cross section of DM production in association with top quarks, ranging from 1 pb to 0.02 pb.</jats:p>
  • Journal article
    Abratenko P, Andrade Aldana D, Arellano L, Asaadi J, Ashkenazi A, Balasubramanian S, Baller B, Barnard A, Barr G, Barrow D, Barrow J, Basque V, Bateman J, Benevides Rodrigues O, Berkman S, Bhat A, Bhattacharya M, Bishai M, Blake A, Bogart B, Bolton T, Brunetti MB, Camilleri L, Caratelli D, Cavanna F, Cerati G, Chappell A, Chen Y, Conrad JM, Convery M, Cooper-Troendle L, Crespo-Anadón JI, Cross R, Del Tutto M, Dennis SR, Detje P, Diurba R, Djurcic Z, Duffy K, Dytman S, Eberly B, Englezos P, Ereditato A, Evans JJ, Fang C, Foreman W, Fleming BT, Franco D, Furmanski AP, Gao F, Garcia-Gamez D, Gardiner S, Ge G, Gollapinni S, Gramellini E, Green P, Greenlee H, Gu L, Gu W, Guenette R, Guzowski P, Hagaman L, Handley MD, Hen O, Hilgenberg C, Horton-Smith GA, Hussain A, Irwin B, Ismail MS, James C, Ji X, Jo JH, Johnson RA, Kalra D, Karagiorgi G, Ketchum W, Kirby M, Kobilarcik T, Lane N, Li J-Y, Li Y, Lin K, Littlejohn BR, Liu L, Louis WC, Luo X, Mahmud T, Mariani C, Marshall J, Martinez N, Martinez Caicedo DA, Martynenko S, Mastbaum A, Mawby I, McConkey N, Mellet L, Mendez J, Micallef J, Mogan A, Mohayai T, Mooney M, Moor AF, Moore CD, Mora Lepin L, Moudgalya MM, Mulleriababu S, Naples D, Navrer-Agasson A, Nayak N, Nebot-Guinot M, Nguyen C, Nowak J, Oza N, Palamara O, Pallat N, Paolone V, Papadopoulou A, Papavassiliou V, Parkinson HB, Pate SF, Patel N, Pavlovic Z, Piasetzky E, Pletcher K, Pophale I, Qian X, Raaf JL, Radeka V, Rafique A, Reggiani-Guzzo M, Rodriguez Rondon J, Rosenberg M, Ross-Lonergan M, Safa I, Schmitz DW, Schukraft A, Seligman W, Shaevitz MH, Sharankova R, Shi J, Snider EL, Söldner-Rembold S, Spitz J, Stancari M, John JS, Strauss T, Szelc AM, Taniuchi N, Terao K, Thorpe C, Torbunov D, Totani D, Toups M, Trettin A, Tsai Y-T, Tyler J, Uchida MA, Usher T, Viren B, Wang J, Weber M, Wei H, White AJ, Wolbers S, Wongjirad T, Wresilo K, Wu W, Yandel E, Yang T, Yates LE, Yu HW, Zeller GP, Zennamo J, Zhang C, MicroBooNE Collaborationet al., 2025,

    First Measurement of ν_{e} and ν[over ¯]_{e} Charged-Current Single Charged-Pion Production Differential Cross Sections on Argon Using the MicroBooNE Detector.

    , Phys Rev Lett, Vol: 135

    Understanding electron neutrino interactions is crucial for measurements of neutrino oscillations and searches for new physics in neutrino experiments. We present the first measurement of the flux-averaged ν_{e}+ν[over ¯]_{e} charged-current single charged-pion production cross section on argon using the MicroBooNE detector and data from the NuMI neutrino beam. The total cross section is measured to be [0.93±0.13(stat)±0.27(syst)]×10^{-39}  cm^{2}/nucleon at a mean ν_{e}+ν[over ¯]_{e} energy of 730 MeV. Differential cross sections are also reported in electron energy, electron and pion angles, and electron-pion opening angle.
  • Journal article
    Hayrapetyan A, Tumasyan A, Adam W, Andrejkovic JW, Benato L, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Hussain PS, Jeitler M, Krammer N, Li A, Liko D, Mikulec I, Schieck J, Schöfbeck R, Schwarz D, Sonawane M, Waltenberger W, Wulz C-E, Janssen T, Van Laer T, Van Mechelen P, Breugelmans N, D'Hondt J, Dansana S, De Moor A, Delcourt M, Heyen F, Lowette S, Makarenko I, Müller D, Tavernier S, Tytgat M, Van Onsem GP, Van Putte S, Vannerom D, Bilin B, Clerbaux B, Das AK, De Bruyn I, De Lentdecker G, Evard H, Favart L, Gianneios P, Jaramillo J, Khalilzadeh A, Khan FA, Lee K, Malara A, Paredes S, Shahzad MA, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, De Coen M, Dobur D, Gokbulut G, Hong Y, Knolle J, Lambrecht L, Marckx D, Mota Amarilo K, Skovpen K, Van Den Bossche N, van der Linden J, Wezenbeek L, Benecke A, Bethani A, Bruno G, Caputo C, De Favereau De Jeneret J, Delaere C, Donertas IS, Giammanco A, Guzel AO, Jain S, Lemaitre V, Lidrych J, Mastrapasqua P, Tran TT, Alves GA, Coelho E, Correia Silva G, Hensel C, Menezes De Oliveira T, Mora Herrera C, Rebello Teles P, Soeiro M, Vilela Pereira A, Aldá Júnior WL, Barroso Ferreira Filho M, Brandao Malbouisson H, Carvalho W, Chinellato J, Da Costa EM, Da Silveira GG, De Jesus Damiao D, Fonseca De Souza S, Gomes De Souza R, Laux Kuhn T, Macedo M, Martins J, Mundim L, Nogima H, Pinheiro JP, Santoro A, Sznajder A, Thiel M, Bernardes CA, Calligaris L, Tomei TRFP, Gregores EM, Maietto Silverio I, Mercadante PG, Novaes SF, Orzari B, Padula SS, Aleksandrov A, Antchev G, Hadjiiska R, Iaydjiev P, Misheva M, Shopova M, Sultanov G, Dimitrov A, Litov L, Pavlov B, Petkov P, Petrov A, Shumka E, Keshri S, Laroze D, Thakur S, Cheng T, Javaid T, Yuan L, Hu Z, Liang Z, Liu J, Chen GM, Chen HS, Chen M, Iemmi F, Jiang CH, Kapoor A, Liao H, Liu Z-A, Sharma R, Song JN, Tao J, Wang C, Wang J, Wang Z, Zhang H, Zhao J, Agapitos A, Ban Y, Carvalho Antunes De Oliveira A, Deng S, Guo B, Jiang C, Levin A, Li C, Li Q, Mao Y, Qian S, Qian SJet al., 2025,

    Search for a Neutral Gauge Boson with Nonuniversal Fermion Couplings in Vector Boson Fusion Processes in Proton-Proton Collisions at sqrt[s]=13  TeV.

    , Phys Rev Lett, Vol: 135

    The first search for a heavy neutral spin-1 gauge boson (Z^{'}) with nonuniversal fermion couplings produced via vector boson fusion processes and decaying to tau leptons or W bosons is presented. The analysis is performed using LHC data at sqrt[s]=13  TeV, collected from 2016 to 2018 with the CMS experiment and corresponding to an integrated luminosity of 138  fb^{-1}. The data are consistent with the standard model predictions. Upper limits are set on the product of the cross section for production of the Z^{'} boson and its branching fraction to ττ or WW. The presence of a Z^{'} boson decaying to τ^{+}τ^{-} (W^{+}W^{-}) is excluded for masses up to 2.45(1.60) TeV, depending on the Z^{'} boson coupling to standard model weak bosons, and assuming a Z^{'}→τ^{+}τ^{-} (W^{+}W^{-}) branching fraction of 50%.
  • Journal article
    Abe K, Abe S, Akutsu R, Alarakia-Charles H, Alj Hakim YI, Alonso Monsalve S, Anthony L, Aoki S, Apte KA, Arai T, Arihara T, Arimoto S, Ashida Y, Atkin ET, Babu N, Baranov V, Barker GJ, Barr G, Barrow D, Bates P, Bathe-Peters L, Batkiewicz-Kwasniak M, Baudis N, Berardi V, Berns L, Bhattacharjee S, Blanchet A, Blondel A, Boistier PMM, Bolognesi S, Bordoni S, Boyd SB, Bronner C, Bubak A, Buizza Avanzini M, Caballero JA, Cadoux F, Calabria NF, Cao S, Cap S, Carabadjac D, Cartwright SL, Casado MP, Catanesi MG, Chakrani J, Chalumeau A, Cherdack D, Chvirova A, Coleman J, Collazuol G, Cormier F, Craplet AAL, Cudd A, Dago D, Dalmazzone C, Daret T, Dasgupta P, Davis C, Davydov YI, de Perio P, De Rosa G, Dealtry T, Densham C, Dergacheva A, Dharmapal Banerjee R, Di Lodovico F, Diaz Lopez G, Dolan S, Douqa D, Doyle TA, Drapier O, Duffy KE, Dumarchez J, Dunne P, Dygnarowicz K, Eguchi A, Elias J, Emery-Schrenk S, Erofeev G, Ershova A, Eurin G, Fedorova D, Fedotov S, Feltre M, Feng L, Ferlewicz D, Finch AJ, Fitton MD, Forza C, Friend M, Fujii Y, Fukuda Y, Furui Y, García-Marcos J, Germer AC, Giannessi L, Giganti C, Girgus M, Glagolev V, Gonin M, González Jiménez R, González Rosa J, Goodman EAG, Gorshanov K, Govindaraj P, Grassi M, Guigue M, Guo FY, Hadley DR, Han S, Harris DA, Harris RJ, Hasegawa T, Hasnip CM, Hassani S, Hastings NC, Hayato Y, Heitkamp I, Henaff D, Hino Y, Holeczek J, Holin A, Holvey T, Hong Van NT, Honjo T, Hooft MCF, Hosokawa K, Hu J, Ichikawa AK, Ieki K, Ikeda M, Ishida T, Ishitsuka M, Ito H, Ito S, Izmaylov A, Jachowicz N, Jenkins SJ, Jesús-Valls C, Jia M, Jiang JJ, Ji JY, Jones TP, Jonsson P, Joshi S, Kabirnezhad M, Kaboth AC, Kakuno H, Kameda J, Karpova S, Kasturi VS, Kataoka Y, Katori T, Kawabata A, Kawamura Y, Kawaue M, Kearns E, Khabibullin M, Khotjantsev A, Kikawa T, King S, Kiseeva V, Kisiel J, Klustová A, Kneale L, Kobayashi H, Koch L, Kodama S, Kolupanova M, Konaka A, Kormos LL, Koshio Y, Kowalik K, Kudenko Y, Kudo Y, Kumar Jha A, Kurjata R, Kurochkaet al., 2025,

    First measurement of neutron capture multiplicity in neutrino-oxygen neutral-current quasielasticlike interactions using an accelerator neutrino beam

    , Physical Review D, Vol: 112, ISSN: 2470-0010

    <jats:p>We report the first measurement of neutron capture multiplicity in neutrino-oxygen neutral-current quasielasticlike interactions at the gadolinium-loaded Super-Kamiokande detector using the T2K neutrino beam, which has a peak energy of about 0.6 GeV. A total of 30 neutral-current quasielasticlike event candidates were selected from T2K data corresponding to an exposure of <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mn>1.76</a:mn><a:mo>×</a:mo><a:msup><a:mn>10</a:mn><a:mn>20</a:mn></a:msup></a:math> protons on target. The <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mi>γ</c:mi></c:math> ray signals resulting from neutron captures were identified using a neural network. The flux-averaged mean neutron capture multiplicity was measured to be <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mrow><e:msubsup><e:mrow><e:mn>1.37</e:mn><e:mo>±</e:mo><e:mn>0.33</e:mn><e:mtext> </e:mtext><e:mo stretchy="false">(</e:mo><e:mi>stat</e:mi><e:mo>.</e:mo><e:mo stretchy="false">)</e:mo></e:mrow><e:mrow><e:mo>−</e:mo><e:mn>0.27</e:mn></e:mrow><e:mrow><e:mo>+</e:mo><e:mn>0.17</e:mn></e:mrow></e:msubsup><e:mtext> </e:mtext><e:mo stretchy="false">(</e:mo><e:mi>syst</e:mi><e:mo>.</e:mo><e:mo stretchy="false">)</e:mo></e:mrow></e:math>, which is compatible within 2.3 sigma than predictions obtained using our nominal simulation. We discuss potential sources of systematic uncertainty in the pr
  • Journal article
    Aaij R, Abdelmotteleb ASW, Abellan Beteta C, Abudinén F, Ackernley T, Adefisoye AA, Adeva B, Adinolfi M, Adlarson P, Agapopoulou C, Aidala CA, Ajaltouni Z, Akar S, Akiba K, Albicocco P, Albrecht J, Alessio F, Aliouche Z, Alvarez Cartelle P, Amalric R, Amato S, Amey JL, Amhis Y, An L, Anderlini L, Andersson M, Andreola P, Andreotti M, Anelli A, Ao D, Archilli F, Areg Z, Argenton M, Arguedas Cuendis S, Artamonov A, Artuso M, Aslanides E, Ataíde Da Silva R, Atzeni M, Audurier B, Bacher D, Bachiller Perea I, Bachmann S, Bachmayer M, Back JJ, Baladron Rodriguez P, Balagura V, Balboni A, Baldini W, Balzani L, Bao H, Baptista de Souza Leite J, Barbero Pretel C, Barbetti M, Barbosa IR, Barlow RJ, Barnyakov M, Barsuk S, Barter W, Bartz J, Bashir S, Batsukh B, Battista PB, Bay A, Beck A, Becker M, Bedeschi F, Bediaga IB, Behling NA, Belin S, Belous K, Belov I, Belyaev I, Benane G, Bencivenni G, Ben-Haim E, Berezhnoy A, Bernet R, Bernet Andres S, Bertolin A, Betancourt C, Betti F, Bex J, Bezshyiko I, Bezshyyko O, Bhom J, Bieker MS, Biesuz NV, Billoir P, Biolchini A, Birch M, Bishop FCR, Bitadze A, Bizzeti A, Blake T, Blanc F, Blank JE, Blusk S, Bocharnikov V, Boelhauve JAet al., 2025,

    Three-pion Bose-Einstein correlations measured in proton-proton collisions

    , Journal of High Energy Physics, Vol: 2025

    A study on the Bose-Einstein correlations for triplets of same-sign pions is presented. The analysis is performed using proton-proton collisions at a centre-of-mass energy of s = 7 TeV, recorded by the LHCb experiment, corresponding to an integrated luminosity of 1.0 fb<sup>−1</sup>. For the first time, the results are interpreted in the core-halo model. The parameters of the model are determined in regions of charged-particle multiplicity. This measurement provides insight into the nature of hadronisation in terms of coherence, being consistent with the presence of coherent emission of pions.
  • Journal article
    Aad G, Abbott B, Abeling K, Abicht NJ, Abidi SH, Aboulhorma A, Abramowicz H, Abreu H, Abulaiti Y, Abusleme Hoffman AC, Acharya BS, Adam Bourdarios C, Adamczyk L, Adamek L, Addepalli SV, Addison MJ, Adelman J, Adiguzel A, Adye T, Affolder AA, Afik Y, Agaras MN, Agarwala J, Aggarwal A, Agheorghiesei C, Ahmadov F, Ahmed WS, Ahuja S, Ai X, Aielli G, Ait Tamlihat M, Aitbenchikh B, Aizenberg I, Akbiyik M, Åkesson TPA, Akimov AV, Akiyama D, Akolkar NN, Al Khoury K, Alberghi GL, Albert J, Albicocco P, Albouy GL, Alderweireldt S, Aleksa M, Aleksandrov IN, Alexa C, Alexopoulos T, Alfonsi A, Alfonsi F, Algren M, Alhroob M, Ali B, Ali HMJ, Ali S, Alibocus SW, Aliev M, Alimonti G, Alkakhi W, Allaire C, Allbrooke BMM, Allen JF, Allendes Flores CA, Allport PP, Aloisio A, Alonso F, Alpigiani C, Alvarez Estevez M, Alvarez Fernandez A, Alviggi MG, Aly M, Amaral Coutinho Y, Ambler A, Amelung C, Amerl M, Ames CG, Amidei D, Amor Dos Santos SP, Amos KR, Ananiev V, Anastopoulos C, Andeen T, Anders JK, Andrean SY, Andreazza A, Angelidakis S, Angerami A, Anisenkov AV, Annovi A, Antel C, Anthony MT, Antipov E, Antonelli M, Antrim DJA, Anulli F, Aoki M, Aoki T, Aparisi Pozo JA, Aparo MA, Aperio Bella Let al., 2025,

    Measurements of W+W− production cross-sections in pp collisions at s=13 TeV with the ATLAS detector

    , Journal of High Energy Physics, Vol: 2025

    Measurements of W<sup>+</sup>W<sup>−</sup> → e<sup>±</sup>νμ<sup>∓</sup>ν production cross-sections are presented, providing a test of the predictions of perturbative quantum chromodynamics and the electroweak theory. The measurements are based on data from pp collisions at s = 13 TeV recorded by the ATLAS detector at the Large Hadron Collider in 2015–2018, corresponding to an integrated luminosity of 140 fb<sup>−1</sup>. The number of events due to top-quark pair production, the largest background, is reduced by rejecting events containing jets with b-hadron decays. An improved methodology for estimating the remaining top-quark background enables a precise measurement of W<sup>+</sup>W<sup>−</sup> cross-sections with no additional requirements on jets. The fiducial W<sup>+</sup>W<sup>−</sup> cross-section is determined in a maximum-likelihood fit with an uncertainty of 3.1%. The measurement is extrapolated to the full phase space, resulting in a total W<sup>+</sup>W<sup>−</sup> cross-section of 127 ± 4 pb. Differential cross-sections are measured as a function of twelve observables that comprehensively describe the kinematics of W<sup>+</sup>W<sup>−</sup> events. The measurements are compared with state-of-the-art theory calculations and excellent agreement with predictions is observed. A charge asymmetry in the lepton rapidity is observed as a function of the dilepton invariant mass, in agreement with the Standard Model expectation. A CP-odd observable is measured to be consistent with no CP violation. Limits on Standard Model effective field theory Wilson coefficients in the Warsaw basis are obtained from the differential cross-sections.
  • Journal article
    Hayrapetyan A, Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Hussain PS, Jeitler M, Krammer N, Li A, Liko D, Mikulec I, Schieck J, Schöfbeck R, Schwarz D, Sonawane M, Waltenberger W, Wulz C-E, Janssen T, Van Laer T, Van Mechelen P, Breugelmans N, DHondt J, Dansana S, De Moor A, Delcourt M, Heyen F, Lowette S, Makarenko I, Müller D, Tavernier S, Tytgat M, Van Onsem GP, Van Putte S, Vannerom D, Bilin B, Clerbaux B, Das AK, De Lentdecker G, Evard H, Favart L, Gianneios P, Jaramillo J, Khalilzadeh A, Khan FA, Lee K, Mahdavikhorrami M, Malara A, Paredes S, Shahzad MA, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, De Coen M, Dobur D, Gokbulut G, Hong Y, Knolle J, Lambrecht L, Marckx D, Amarilo KM, Skovpen K, Van Den Bossche N, van der Linden J, Wezenbeek L, Benecke A, Bethani A, Bruno G, Caputo C, De Favereau De Jeneret J, Delaere C, Donertas IS, Giammanco A, Guzel AO, Jain S, Lemaitre V, Lidrych J, Mastrapasqua P, Tran TT, Wertz S, Alves GA, Alves Gallo Pereira M, Coelho E, Correia Silva G, Hensel C, Menezes De Oliveira T, Mora Herrera C, Moraes A, Rebello Teles P, Soeiro M, Vilela Pereira A, Aldá Júnior WL, Barroso Ferreira Filho M, Brandao Malbouisson H, Carvalho W, Chinellato J, Da Costa EM, Da Silveira GG, De Jesus Damiao D, Fonseca De Souza S, Gomes De Souza R, Laux Kuhn T, Macedo M, Martins J, Mundim L, Nogima H, Pinheiro JP, Santoro A, Sznajder A, Thiel M, Bernardes CA, Calligaris L, Fernandez Perez Tomei TR, Gregores EM, Maietto Silverio I, Mercadante PG, Novaes SF, Orzari B, Padula SS, Aleksandrov A, Antchev G, Hadjiiska R, Iaydjiev P, Misheva M, Shopova M, Sultanov G, Dimitrov A, Litov L, Pavlov B, Petkov P, Petrov A, Shumka E, Keshri S, Laroze D, Thakur S, Cheng T, Javaid T, Yuan L, Hu Z, Liang Z, Liu J, Yi K, Chen GM, Chen HS, Chen M, Iemmi F, Jiang CH, Kapoor A, Liao H, Liu Z-A, Sharma R, Song JN, Tao J, Wang C, Wang J, Wang Z, Zhang H, Zhao J, Agapitos A, Ban Y, Carvalho Antunes De Oliveira A, Deng S, Guoet al., 2025,

    Measurement of light-by-light scattering and the Breit-Wheeler process, and search for axion-like particles in ultraperipheral PbPb collisions at $$\sqrt{{s}_{\text{NN}}}$$ = 5.02 TeV

    , Journal of High Energy Physics, Vol: 2025

    <jats:title>A<jats:sc>bstract</jats:sc> </jats:title> <jats:p>Measurements of light-by-light scattering (LbL, <jats:italic>γγ → γγ</jats:italic>) and the Breit-Wheeler process (BW, <jats:italic>γγ →</jats:italic> <jats:italic>e</jats:italic> <jats:sup>+</jats:sup> <jats:italic>e</jats:italic> <jats:sup> <jats:italic>−</jats:italic> </jats:sup>) are reported in ultraperipheral PbPb collisions at a centre-of-mass energy per nucleon pair of 5.02 TeV. The data sample, corresponding to an integrated luminosity of 1.7 nb<jats:sup> <jats:italic>−</jats:italic>1</jats:sup>, was collected by the CMS experiment at the CERN LHC in 2018. Events with an exclusively produced <jats:italic>γγ</jats:italic> or <jats:italic>e</jats:italic> <jats:sup>+</jats:sup> <jats:italic>e</jats:italic> <jats:sup> <jats:italic>−</jats:italic> </jats:sup> pair with invariant masses <jats:italic>m</jats:italic> <jats:sup> <jats:italic>γγ,ee</jats:italic> </jats:sup> <jats:italic> &gt;</jats:italic> 5 GeV, along with other fiducial criteria, are selected. The measured BW fiducial production cross section, <jats:italic>σ</jats:italic> <jats:sub>fid</jats:sub>(<jats:italic>γγ → e</jats:italic> <jats:sup>+</jats:sup> <jats:italic>e</jats:italic> <jats:sup> <jats:italic>−</jats:italic> <
  • Journal article
    Hayrapetyan A, Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Friedl M, Frühwirth E, Hussain PS, Jeitler M, Krammer N, Li A, Liko D, Mikulec I, Schieck J, Schöfbeck R, Schwarz D, Sonawane M, Steininger H, Templ S, Waltenberger W, Wulz CE, Beaumont W, Darwish MR, Janssen T, Ocampo Henao D, Van Laer T, Van Mechelen P, Bierkens J, Bols ES, Breugelmans N, D'Hondt J, Dansana S, De Moor A, Delcourt M, Heyen F, Lowette S, Makarenko I, Müller D, Tavernier S, Tytgat M, Van Onsem GP, Van Putte S, Vannerom D, Allard Y, Caviglia Roman F, Clerbaux B, Das AK, De Lentdecker G, Ducarme E, Evard H, Favart L, Gianneios P, Hohov D, Jaramillo J, Kalaitzidou I, Khalilzadeh A, Khan FA, Korntheuer M, Lee K, Mahdavikhorrami M, Malara A, Paredes S, Robert F, Shahzad MA, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, Yuan C, De Coen M, Dobur D, Hong Y, Knolle J, Lambrecht L, Mestdach G, Mota Amarilo K, Rendón C, Skovpen K, Van Den Bossche N, van der Linden J, Wezenbeek L, Yang Y, Benecke A, Bethani A, Bruno G, Caputo C, De Favereau De Jeneret J, Delaere C, Donertas IS, Giammanco A, Guzel AO, Jain S, Lemaitre V, Lidrych J, Mastrapasqua P, Szilasi N, Tran TTet al., 2025,

    Operation and performance of the CMS silicon strip tracker with proton-proton collisions at the CERN LHC

    , Journal of Instrumentation, Vol: 20

    Salient aspects of the commissioning, calibration, and performance of the CMS silicon strip tracker are discussed, drawing on experience during operation with proton-proton collisions delivered by the CERN LHC. The data were obtained with a variety of luminosities. The operating temperature of the strip tracker was changed several times during this period and results are shown as a function of temperature in several cases. Details of the system performance are presented, including occupancy, signal-to-noise ratio, Lorentz angle, and single-hit spatial resolution. Saturation effects in the APV25 readout chip preamplifier observed during early Run 2 are presented, showing the effect on various observables and the subsequent remedy. Studies of radiation effects on the strip tracker are presented both for the optical readout links and the silicon sensors. The observed effects are compared to simulation, where available, and they generally agree well with expectations.
  • Journal article
    Aad G, Aakvaag E, Abbott B, Abdelhameed S, Abeling K, Abicht NJ, Abidi SH, Aboelela M, Aboulhorma A, Abramowicz H, Abulaiti Y, Acharya BS, Ackermann A, Adam Bourdarios C, Adamczyk L, Addepalli SV, Addison MJ, Adelman J, Adiguzel A, Adye T, Affolder AA, Afik Y, Agaras MN, Aggarwal A, Agheorghiesei C, Ahmadov F, Ahuja S, Ai X, Aielli G, Aikot A, Ait Tamlihat M, Aitbenchikh B, Akbiyik M, Åkesson TPA, Akimov AV, Akiyama D, Akolkar NN, Aktas S, Alberghi GL, Albert J, Albicocco P, Albouy GL, Alderweireldt S, Alegria ZL, Aleksa M, Aleksandrov IN, Alexa C, Alexopoulos T, Alfonsi F, Algren M, Alhroob M, Ali B, Ali HMJ, Ali S, Alibocus SW, Aliev M, Alimonti G, Alkakhi W, Allaire C, Allbrooke BMM, Allen JS, Allen JF, Allport PP, Aloisio A, Alonso F, Alpigiani C, Alsolami ZMK, Alvarez Fernandez A, Alves Cardoso M, Alviggi MG, Aly M, Amaral Coutinho Y, Ambler A, Amelung C, Amerl M, Ames CG, Amidei D, Amini B, Amirie K, Amirkhanov A, Amor Dos Santos SP, Amos KR, Amperiadou D, An S, Ananiev V, Anastopoulos C, Andeen T, Anders JK, Anderson AC, Andreazza A, Angelidakis S, Angerami A, Anisenkov AV, Annovi A, Antel C, Antipov E, Antonelli M, Anulli F, Aoki M, Aoki Tet al., 2025,

    Measurement of the top quark mass with the ATLAS detector using tt¯ events with a high transverse momentum top quark

    , Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, Vol: 867, ISSN: 0370-2693

    The mass of the top quark is measured using top-quark-top-antiquark pair events with high transverse momentum top quarks. The dataset, collected with the ATLAS detector in proton–proton collisions at s=13 TeV delivered by the Large Hadron Collider, corresponds to an integrated luminosity of 140 fb<sup>−1</sup>. The analysis targets events in the lepton-plus-jets decay channel, with an electron or muon from a semi-leptonically decaying top quark and a hadronically decaying top quark that is sufficiently energetic to be reconstructed as a single large-radius jet. The mean of the invariant mass of the reconstructed large-radius jet provides the sensitivity to the top quark mass and is simultaneously fitted with two additional observables to reduce the impact of the systematic uncertainties. The top quark mass is measured to be m<inf>t</inf>=172.95±0.53 GeV, which is the most precise ATLAS measurement from a single channel.
  • Journal article
    Aaij R, Abdelmotteleb ASW, Abellan Beteta C, Abudinén F, Ackernley T, Adefisoye AA, Adeva B, Adinolfi M, Adlarson P, Agapopoulou C, Aidala CA, Ajaltouni Z, Akar S, Akiba K, Albicocco P, Albrecht J, Alessio F, Aliouche Z, Alvarez Cartelle P, Amalric R, Amato S, Amey JL, Amhis Y, An L, Anderlini L, Andersson M, Andreianov A, Andreola P, Andreotti M, Andreou D, Anelli A, Ao D, Archilli F, Argenton M, Arguedas Cuendis S, Artamonov A, Artuso M, Aslanides E, Ataíde Da Silva R, Atzeni M, Audurier B, Bacher D, Bachiller Perea I, Bachmann S, Bachmayer M, Back JJ, Baladron Rodriguez P, Balagura V, Balboni A, Baldini W, Balzani L, Bao H, Baptista de Souza Leite J, Barbero Pretel C, Barbetti M, Barbosa IR, Barlow RJ, Barnyakov M, Barsuk S, Barter W, Bartz J, Bashir S, Batsukh B, Battista PB, Bay A, Beck A, Becker M, Bedeschi F, Bediaga IB, Behling NA, Belin S, Belous K, Belov I, Belyaev I, Benane G, Bencivenni G, Ben-Haim E, Berezhnoy A, Bernet R, Bernet Andres S, Bertolin A, Betancourt C, Betti F, Bex J, Bezshyiko I, Bezshyyko O, Bhom J, Bieker MS, Biesuz NV, Billoir P, Biolchini A, Birch M, Bishop FCR, Bitadze A, Bizzeti A, Blake T, Blanc F, Blank JE, Blusk S, Bocharnikov V, Boelhauve JA, Boente Garcia O, Boettcher T, Bohare A, Boldyrev A, Bolognani CS, Bolzonella R, Bonacci RB, Bondar N, Bordelius A, Borgato F, Borghi S, Borsato M, Borsuk JT, Bottalico E, Bouchiba SA, Bovill M, Bowcock TJV, Boyer A, Bozzi C, Brandenburg JD, Brea Rodriguez A, Breer N, Brodzicka J, Brossa Gonzalo A, Brown J, Brundu D, Buchanan E, Buonincontri L, Burgos Marcos M, Burke AT, Burr C, Butter JS, Buytaert J, Byczynski W, Cadeddu S, Cai H, Caillet A, Calabrese R, Calderon Ramirez S, Calefice L, Cali S, Calvi M, Calvo Gomez M, Camargo Magalhaes P, Cambon Bouzas JI, Campana P, Campora Perez DH, Campoverde Quezada AF, Capelli S, Capriotti L, Caravaca-Mora R, Carbone A, Carcedo Salgado L, Cardinale R, Cardini A, Carniti P, Carus L, Casais Vidal A, Caspary R, Casse G, Cattaneo M, Cavallero G, Cavallini Vet al., 2025,

    Observation of the Very Rare Σ^{+}→pμ^{+}μ^{-} Decay.

    , Phys Rev Lett, Vol: 135

    The first observation of the Σ^{+}→pμ^{+}μ^{-} decay is reported with high significance using proton-proton collision data, corresponding to an integrated luminosity of 5.4  fb^{-1}, collected with the LHCb detector at a center-of-mass energy of 13 TeV. A yield of 237±16  Σ^{+}→pμ^{+}μ^{-} decays is obtained, where the uncertainty is statistical only. A branching fraction of (1.08±0.17)×10^{-8} is measured, where the uncertainty includes statistical and systematic sources. No evidence of resonant structures is found in the dimuon invariant-mass distribution. All results are compatible with standard model expectations. This represents the rarest decay of a baryon ever observed.
  • Journal article
    Aad G, Aakvaag E, Abbott B, Abdelhameed S, Abeling K, Abicht NJ, Abidi SH, Aboelela M, Aboulhorma A, Abramowicz H, Abreu H, Abulaiti Y, Acharya BS, Ackermann A, Adam Bourdarios C, Adamczyk L, Addepalli SV, Addison MJ, Adelman J, Adiguzel A, Adye T, Affolder AA, Afik Y, Agaras MN, Agarwala J, Aggarwal A, Agheorghiesei C, Ahmadov F, Ahmed WS, Ahuja S, Ai X, Aielli G, Aikot A, Ait Tamlihat M, Aitbenchikh B, Akbiyik M, Åkesson TPA, Akimov AV, Akiyama D, Akolkar NN, Aktas S, Al Khoury K, Alberghi GL, Albert J, Albicocco P, Albouy GL, Alderweireldt S, Alegria ZL, Aleksa M, Aleksandrov IN, Alexa C, Alexopoulos T, Alfonsi F, Algren M, Alhroob M, Ali B, Ali HMJ, Ali S, Alibocus SW, Aliev M, Alimonti G, Alkakhi W, Allaire C, Allbrooke BMM, Allen JS, Allen JF, Allendes Flores CA, Allport PP, Aloisio A, Alonso F, Alpigiani C, Alsolami ZMK, Alvarez Estevez M, Alvarez Fernandez A, Alves Cardoso M, Alviggi MG, Aly M, Amaral Coutinho Y, Ambler A, Amelung C, Amerl M, Ames CG, Amidei D, Amini B, Amirie K, Amor Dos Santos SP, Amos KR, Amperiadou D, An S, Ananiev V, Anastopoulos C, Andeen T, Anders JK, Anderson AC, Andrean SY, Andreazza A, Angelidakis S, Angerami A, Anisenkov AV, Annovi Aet al., 2025,

    Measurements of the production cross-sections of a Higgs boson in association with a vector boson and decaying into WW* with the ATLAS detector at s = 13 TeV

    , Journal of High Energy Physics, Vol: 2025

    Measurements of the total and differential Higgs boson production cross-sections, via WH and ZH associated production using H → WW<sup>*</sup> → ℓνℓν and H → WW<sup>*</sup> → ℓνjj decays, are presented. The analysis uses proton-proton events delivered by the Large Hadron Collider at a centre-of-mass energy of 13 TeV and recorded by the ATLAS detector between 2015 and 2018. The data correspond to an integrated luminosity of 140 fb<sup>−1</sup>. The sum of the WH and ZH cross-sections times the H → WW<sup>*</sup> branching fraction is measured to be 0.44−0.09+0.10stat.−0.05+0.06syst. pb, in agreement with the Standard Model prediction. Higgs boson production is further characterised through measurements of the differential cross-section as a function of the transverse momentum of the vector boson and in the framework of Simplified Template Cross-Sections.
  • Journal article
    Cartelle PA, Anelli A, Balboni A, Beck A, Betti F, Bex J, Borgato F, Calabrese R, Calvi M, Cardinale R, Cavallero G, Cojocariu L, Craik DC, Dall'Occo E, D'Ambrosio C, Duk V, Fantini L, Ferrari F, Fiorini M, Franzoso E, Frei C, Gambetta S, Ghizzo S, Ghorbanimoghaddam Z, Gotti C, Gys T, Jones CR, Juszczak I, Kane M, Keizer F, Kucharczyk M, Long T, Maciuc F, Malentacca L, Martelli G, Mauri A, McCann M, Muheim F, Niel EM, Okamura S, Oliva F, Papanestis A, Patel M, Patoc J, Piccini M, Placinta V, Rademacker JH, Reich J, Romolini G, Sergi A, Simi G, Smith M, Swystun F, Tilquin H, Vrahas C, Wilkinson G, Williams R, Witek M, Wotton SA, Xian S, Yang Yet al., 2025,

    Luminosity measurement with the LHCb RICH detectors in Run 3

    , JOURNAL OF INSTRUMENTATION, Vol: 20
  • Journal article
    Aalbers J, Akerib DS, Al Musalhi AK, Alder F, Amarasinghe CS, Ames A, Anderson TJ, Angelides N, Araujo HM, Armstrong JE, Arthurs M, Baker A, Balashov S, Bang J, Bargemann JW, Barillier EE, Beattie K, Benson T, Bhatti A, Biekert A, Biesiadzinski TP, Birch HJ, Bishop E, Blockinger GM, Boxer B, Brew CAJ, Bras P, Burdin S, Buuck M, Carmona-Benitez MC, Carter M, Chawla A, Chen H, Cherwinka JJ, Chin YT, Chott NI, Converse MV, Coronel R, Cottle A, Cox G, Curran D, Dahl CE, Darlington I, Dave S, David A, Delgaudio J, Dey S, de Viveiros L, Di Felice L, Ding C, Dobson JEY, Druszkiewicz E, Dubey S, Eriksen SR, Fan A, Fearon NM, Fieldhouse N, Fiorucci S, Flaecher H, Fraser ED, Fruth TMA, Gaitskell RJ, Geffre A, Genovesi J, Ghag C, Gibbons R, Gokhale S, Green J, van der Grinten MGD, Haiston JJ, Hall CR, Hall T, Han S, Hartigan-O'Connor E, Haselschwardt SJ, Hernandez MA, Hertel SA, Heuermann G, Homenides GJ, Horn M, Huang DQ, Hunt D, Jacquet E, James RS, Kannichankandy MK, Kaboth AC, Kamaha AC, Khaitan D, Khazov A, Kim J, Kim YD, Kingston J, Kirk R, Kodroff D, Korley L, Korolkova EV, Kraus H, Kravitz S, Kreczko L, Kudryavtsev VA, Lawes C, Leonard DS, Lesko KT, Levy C, Lin J, Lindote A, Lippincott WH, Lopes MI, Lorenzon W, Lu C, Luitz S, Majewski PA, Manalaysay A, Mannino RL, Maupin C, McCarthy ME, McDowell G, McKinsey DN, McLaughlin J, McLaughlin JB, McMonigle R, Mizrachi E, Monzani ME, Morrison E, Mount BJ, Murdy M, Murphy ASJ, Nelson HN, Neves F, Nguyen A, O'Brien CL, Olcina I, Oliver-Mallory KC, Orpwood J, Oyulmaz KY, Palladino KJ, Palmer J, Pannifer NJ, Parveen N, Patton SJ, Penning B, Pereira G, Perry E, Pershing T, Piepke A, Qie Y, Reichenbacher J, Rhyne CA, Rischbieter GRC, Ritchey E, Riyat HS, Rosero R, Rushton T, Rynders D, Santone D, Sazzad ABMR, Schnee RW, Sehr G, Shafer B, Shaw S, Shi K, Shutt T, Silk JJ, Silva C, Siniscalco J, Smith R, Solovov VN, Sorensen P, Soria J, Stancu I, Stevens A, Stifter K, Suerfu B, Sumner TJ, Swain A, Szydagis M, Tiedt DR, Timalsina M, Tonet al., 2025,

    Measurements and models of enhanced recombination following inner-shell vacancies in liquid xenon

    , Physical Review D: Particles, Fields, Gravitation and Cosmology, Vol: 112, ISSN: 1550-7998

    Electron-capture decays of 125 Xe and 127 Xe , and double-electron-capture decays of 124 Xe , are backgrounds in searches for weakly interacting massive particles (WIMPs) conducted by dual-phase xenon time projection chambers such as LUX-ZEPLIN (LZ). These decays produce signals with more light and less charge than equivalent-energy 𝛽 decays and correspondingly overlap more with WIMP signals. We measure three electron-capture charge yields in LZ: the 1.1 keV M-shell, 5.2 keV L-shell, and 33.2 keV K-shell at drift fields of 193 and 96.5  V/cm. The LL double-electron-capture decay of 124 Xe exhibits even more pronounced shifts in charge and light. We provide a first model of double-electron-capture charge yields using the link between ionization density and electron-ion recombination, and identify a need for more accurate calculations. Finally, we discuss the implications of the reduced charge yield of these decays and other interactions creating inner-shell vacancies for future dark matter searches.
  • Journal article
    Chekhovsky V, Hayrapetyan A, Makarenko V, Tumasyan A, Adam W, Andrejkovic JW, Benato L, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Hussain PS, Jeitler M, Krammer N, Li A, Liko D, Mikulec I, Schieck J, Schöfbeck R, Schwarz D, Sonawane M, Waltenberger W, Wulz C-E, Janssen T, Kwon H, Van Laer T, Van Mechelen P, Breugelmans N, DHondt J, Dansana S, De Moor A, Delcourt M, Heyen F, Hong Y, Lowette S, Makarenko I, Müller D, Tavernier S, Tytgat M, Van Onsem GP, Van Putte S, Vannerom D, Bilin B, Clerbaux B, Das AK, De Bruyn I, De Lentdecker G, Evard H, Favart L, Gianneios P, Khalilzadeh A, Khan FA, Malara A, Shahzad MA, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, De Coen M, Dobur D, Gokbulut G, Knolle J, Lambrecht L, Marckx D, Skovpen K, Van Den Bossche N, van der Linden J, Vandenbroeck J, Wezenbeek L, Bein S, Benecke A, Bethani A, Bruno G, Caputo C, De Favereau De Jeneret J, Delaere C, Donertas IS, Giammanco A, Guzel AO, Jain S, Lemaitre V, Lidrych J, Mastrapasqua P, Tran TT, Turkcapar S, Alves GA, Coelho E, Correia Silva G, Hensel C, Menezes De Oliveira T, Mora Herrera C, Rebello Teles P, Soeiro M, Tonelli Manganote EJ, Vilela Pereira A, Aldá Júnior WL, Barroso Ferreira Filho M, Brandao Malbouisson H, Carvalho W, Chinellato J, Da Costa EM, Da Silveira GG, De Jesus Damiao D, Fonseca De Souza S, Gomes De Souza R, Laux Kuhn T, Macedo M, Martins J, Mota Amarilo K, Mundim L, Nogima H, Pinheiro JP, Santoro A, Sznajder A, Thiel M, Bernardes CA, Calligaris L, Tomei TRFP, Gregores EM, Maietto Silverio I, Mercadante PG, Novaes SF, Orzari B, Padula SS, Scheurer V, Aleksandrov A, Antchev G, Hadjiiska R, Iaydjiev P, Misheva M, Shopova M, Sultanov G, Dimitrov A, Litov L, Pavlov B, Petkov P, Petrov A, Shumka E, Keshri S, Laroze D, Thakur S, Cheng T, Javaid T, Yuan L, Hu Z, Liang Z, Liu J, Chen GM, Chen HS, Chen M, Iemmi F, Jiang CH, Kapoor A, Liao H, Liu Z-A, Sharma R, Song JN, Tao J, Wang C, Wang J, Wang Z, Zhang H, Zhao J, Agapitos A, Ban Y, Carvalho Antunes De Olivet al., 2025,

    Observation of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>W</mml:mi><mml:mi>Z</mml:mi><mml:mi>γ</mml:mi></mml:math> production and constraints on new physics scenarios in proton-proton collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>13</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:math>

    , Physical Review D, Vol: 112, ISSN: 2470-0010

    <jats:p>A measurement of the <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mrow><a:mi>W</a:mi></a:mrow><a:mi>Z</a:mi><a:mi>γ</a:mi></a:mrow></a:math> triboson production cross section is presented. The analysis is based on a data sample of proton-proton collisions at a center-of-mass energy of <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:msqrt><c:mi>s</c:mi></c:msqrt><c:mo>=</c:mo><c:mn>13</c:mn><c:mtext> </c:mtext><c:mtext> </c:mtext><c:mi>TeV</c:mi></c:math> recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mn>138</e:mn><e:mtext> </e:mtext><e:mtext> </e:mtext><e:msup><e:mi>fb</e:mi><e:mrow><e:mo>−</e:mo><e:mn>1</e:mn></e:mrow></e:msup></e:math>. The analysis focuses on the final state with three charged leptons, <g:math xmlns:g="http://www.w3.org/1998/Math/MathML" display="inline"><g:mrow><g:mrow><g:msup><g:mrow><g:mo>ℓ</g:mo></g:mrow><g:mrow><g:mo>±</g:mo></g:mrow></g:msup></g:mrow><g:mi>ν</g:mi><g:mrow><g:msup><g:mrow><g:mo>ℓ</g:mo></g:mrow><g:mrow><g:mo>+</g:mo></g:mrow></g:msup></g:mrow><g:mrow><g:msup><g:mrow><g:mo>ℓ</g:mo></g:mrow><g:mrow><g:mo>−</g:mo></g:mrow></g:msup></g:mrow></g:mrow></g:math>, where <i:math xmlns:i="h
  • Journal article
    Aad G, Aakvaag E, Abbott B, Abdelhameed S, Abeling K, Abicht NJ, Abidi SH, Aboelela M, Aboulhorma A, Abramowicz H, Abulaiti Y, Acharya BS, Ackermann A, Adam Bourdarios C, Adamczyk L, Addepalli SV, Addison MJ, Adelman J, Adiguzel A, Adye T, Affolder AA, Afik Y, Agaras MN, Aggarwal A, Agheorghiesei C, Ahmadov F, Ahuja S, Ai X, Aielli G, Aikot A, Tamlihat MA, Aitbenchikh B, Akbiyik M, Akesson TPA, Akimov AV, Akiyama D, Akolkar NN, Aktas S, Alberghi GL, Albert J, Albicocco P, Albouy GL, Alderweireldt S, Alegria ZL, Aleksa M, Aleksandrov IN, Alexa C, Alexopoulos T, Alfonsi F, Algren M, Alhroob M, Ali B, Ali HMJ, Ali S, Alibocus SW, Aliev M, Alimonti G, Alkakhi W, Allaire C, Allbrooke BMM, Allen JS, Allen JF, Allport PP, Aloisio A, Alonso F, Alpigiani C, Alsolami ZMK, Alvarez Fernandez A, Alves Cardoso M, Alviggi MG, Aly M, Coutinho YA, Ambler A, Amelung C, Amerl M, Ames CG, Amidei D, Amini B, Amirie KJ, Amirkhanov A, Dos Santos SPA, Amos KR, Amperiadou D, An S, Ananiev V, Anastopoulos C, Andeen T, Anders JK, Anderson AC, Andreazza A, Angelidakis S, Angerami A, Anisenkov AV, Annovi A, Antel C, Antipov E, Antonelli M, Anulli F, Aoki M, Aoki T, Aparo MA, Bella LA, Appelt C, Apyan A, Arbiol Val SJ, Arcangeletti C, Arce ATH, Arguin J-F, Argyropoulos S, Arling J-H, Arnaez O, Arnold H, Artoni G, Asada H, Asai K, Asai S, Asbah NA, Ashby Pickering RA, Aslam AM, Assamagan K, Astalos R, Astrand KSV, Atashi S, Atkin RJ, Atmani H, Atmasiddha PA, Augsten K, Auriol AD, Austrup VA, Avolio G, Axiotis K, Azuelos G, Babal D, Bachacou H, Bachas K, Bachiu A, Bachmann E, Backes MJ, Badea A, Baer TM, Bagnaia P, Bahmani M, Bahner D, Bai K, Baines JT, Baines L, Baker OK, Bakos E, Bakshi Gupta D, Balabram Filho LE, Balakrishnan V, Balasubramanian R, Baldin EM, Balek P, Ballabene E, Balli F, Baltes LM, Balunas WK, Balz J, Bamwidhi I, Banas E, Bandieramonte M, Bandyopadhyay A, Bansal S, Barak L, Barakat M, Barberio EL, Barberis D, Barbero M, Barel MZ, Barillari T, Barisits M-S, Barklow T, Baron Pet al., 2025,

    Search for long-lived charged particles using large specific ionisation loss and time of flight in 140 fb<SUP><i>-</i>1</SUP> of <i>pp</i> collisions at √<i>s</i>=13 TeV with the ATLAS detector

    , JOURNAL OF HIGH ENERGY PHYSICS

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