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  • Journal article
    Abdalla A, Abe M, Abend S, Abidi M, Aidelsburger M, Alibabaei A, Allard B, Antoniadis J, Arduini G, Augst N, Balamatsias P, Balaž A, Banks H, Barcklay RL, Barone M, Barsanti M, Bason MG, Bassi A, Bayle JB, Baynham CFA, Beaufils Q, Beldjoudi S, Belić A, Bennetts S, Bernabeu J, Bertoldi A, Bigard C, Bigelow NP, Bingham R, Blas D, Bobrick A, Boehringer S, Bogojević A, Bongs K, Bortoletto D, Bouyer P, Brand C, Buchmueller O, Buica G, Calatroni S, Calmels L, Canizares P, Canuel B, Caramete A, Caramete LI, Carlesso M, Carlton J, Carman SP, Carroll A, Casariego M, Chairetis M, Charmandaris V, Chauhan U, Chen J, Chiofalo MLMLM, Ciampini D, Cimbri A, Cladé P, Coleman J, Constantin FL, Contaldi CR, Corgier R, Dash B, Davies GJ, de Rham C, De Roeck A, Derr D, Dey S, Di Pumpo F, Djordjevic GS, Döbrich B, Dornan P, Doser M, Drougakis G, Dunningham J, Duspayev A, Easo S, Eby J, Efremov M, Elertas G, Ellis J, Entin N, Fairhurst S, Fanì M, Fassi F, Fayet P, Felea D, Feng J, Flack R, Foot C, Freegarde T, Fuchs E, Gaaloul N, Gao D, Gardner S, Garraway BM, GarridoAlzar CL, Gauguet A, Giese E, Gill Pet al., 2025,

    Terrestrial Very-Long-Baseline Atom Interferometry: summary of the second workshop

    , EPJ Quantum Technology, Vol: 12

    This summary of the second Terrestrial Very-Long-Baseline Atom Interferometry (TVLBAI) Workshop provides a comprehensive overview of our meeting held in London in April 2024 (Second Terrestrial Very-Long-Baseline Atom Interferometry Workshop, Imperial College, April 2024), building on the initial discussions during the inaugural workshop held at CERN in March 2023 (First Terrestrial Very-Long-Baseline Atom Interferometry Workshop, CERN, March 2023). Like the summary of the first workshop (Abend et al. in AVS Quantum Sci. 6:024701, 2024), this document records a critical milestone for the international atom interferometry community. It documents our concerted efforts to evaluate progress, address emerging challenges, and refine strategic directions for future large-scale atom interferometry projects. Our commitment to collaboration is manifested by the integration of diverse expertise and the coordination of international resources, all aimed at advancing the frontiers of atom interferometry physics and technology, as set out in a Memorandum of Understanding signed by over 50 institutions (Memorandum of Understanding for the Terrestrial Very Long Baseline Atom Interferometer Study).
  • 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 CE, Darwish MR, Janssen 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 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, Mota Amarilo K, Samalan A, 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, Moraes A, Rebello Teles P, Soeiro M, Vilela Pereira A, Aldá Júnior WL, Barroso Ferreira Filho M, Brandao Malbouisson H, Carvalho W, Chinellato Jet al., 2025,

    Search for rare decays of the Z and Higgs bosons to a J/ψ or ψ(2S) meson and a photon in proton-proton collisions at s=13TeV

    , Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol: 865, ISSN: 0370-2693

    A search is presented for rare decays of the [Figure presented] and Higgs bosons to a photon and a [Figure presented] or a [Figure presented] meson, with the charmonium state subsequentially decaying to a pair of muons. The data set corresponds to an integrated luminosity of 123fb−1 of proton-proton collisions at a center-of-mass energy of 13 TeV collected with the CMS detector at the LHC. No evidence for branching fractions of these rare decay channels larger than predicted in the standard model is observed. Upper limits at 95% confidence level are set: [Figure presented], [Figure presented], [Figure presented], and [Figure presented]. The ratio of the Higgs boson coupling modifiers [Figure presented] is constrained to be in the interval (−157,+199) at 95% confidence level. Assuming [Figure presented], this interval becomes (−166,+208).
  • 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 CE, 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 Det al., 2025,

    Angular analysis of the B<sup>0</sup> → K<sup>⁎</sup>(892)<sup>0</sup>μ<sup>+</sup>μ<sup>−</sup> decay in proton-proton collisions at s=13TeV

    , Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol: 864, ISSN: 0370-2693

    A full set of optimized observables is measured in an angular analysis of the decay B0→K⁎(892)0μ+μ− using a sample of proton-proton collisions at s=13TeV, collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 140 fb−1. The analysis is performed in six bins of the squared invariant mass of the dimuon system, q2, over the range 1.1<q2<16GeV2. The results are among the most precise experimental measurements of the angular observables for this decay and are compared to a variety of predictions based on the standard model. Some of these predictions exhibit tension with the measurements.
  • Journal article
    Aalbers J, Abe K, Adrover M, Ahmed Maouloud S, Akerib DS, Al Musalhi AK, Alder F, Althueser L, Amaral DWP, Amarasinghe CS, Ames A, Andrieu B, Angelides N, Angelino E, Antunovic B, Aprile E, Araújo HM, Armstrong JE, Arthurs M, Babicz M, Baker A, Balzer M, Bang J, Barberio E, Bargemann JW, Barillier E, Basharina-Freshville A, Baudis L, Bauer D, Bazyk M, Beattie K, Beaupere N, Bell NF, Bellagamba L, Benson T, Bhatti A, Biesiadzinski TP, Biondi R, Biondi Y, Birch HJ, Bishop E, Bismark A, Boehm C, Boese K, Bolotnikov A, Brás P, Braun R, Breskin A, Brew CAJ, Brommer S, Brown A, Bruni G, Budnik R, Burdin S, Cai C, Capelli C, Carini G, Carmona-Benitez MC, Carter M, Chauvin A, Chawla A, Chen H, Cherwinka JJ, Chin YT, Chott NI, Cimental Chavez AP, Clark K, Colijn AP, Colling DJ, Conrad J, Converse MV, Coronel R, Costanzo D, Cottle A, Cox G, Cuenca-García JJ, Curran D, Cussans D, DAndrea V, Daniel Garcia LC, Darlington I, Dave S, David A, Davies GJ, Decowski MP, Deisting A, Delgaudio J, Dey S, Di Donato C, Di Felice L, Di Gangi P, Diglio S, Ding C, Dobson JEY, Doerenkamp M, Drexlin G, Druszkiewicz E, Dunbar CL, Eitel K, Elykov Aet al., 2025,

    Neutrinoless double beta decay sensitivity of the XLZD rare event observatory

    , Journal of Physics G: Nuclear and Particle Physics, Vol: 52, ISSN: 0954-3899

    The XLZD collaboration is developing a two-phase xenon time projection chamber with an active mass of 60-80 t capable of probing the remaining weakly interacting massive particle-nucleon interaction parameter space down to the so-called neutrino fog. In this work we show that, based on the performance of currently operating detectors using the same technology and a realistic reduction of radioactivity in detector materials, such an experiment will also be able to competitively search for neutrinoless double beta decay in 136Xe using a natural-abundance xenon target. XLZD can reach a 3σ discovery potential half-life of 5.7 × 1027 years (and a 90% CL exclusion of 1.3 × 1028 years) with 10 years of data taking, corresponding to a Majorana mass range of 7.3-31.3 meV (4.8-20.5 meV). XLZD will thus exclude the inverted neutrino mass ordering parameter space and will start to probe the normal ordering region for most of the nuclear matrix elements commonly considered by the community.
  • 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, 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, 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, Cabet al., 2025,

    Measurement of the inclusive cross sections for W and Z boson production in proton-proton collisions at $$ \sqrt{\textrm{s}} $$ = 5.02 and 13 TeV

    , Journal of High Energy Physics, Vol: 2025

    <jats:title>A<jats:sc>bstract</jats:sc> </jats:title> <jats:p>Measurements of fiducial and total inclusive cross sections for W and Z boson production are presented in proton-proton collisions at <jats:inline-formula> <jats:alternatives> <jats:tex-math>$$ \sqrt{s} $$</jats:tex-math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> </jats:alternatives> </jats:inline-formula> = 5.02 and 13 TeV. Electron and muon decay modes (<jats:italic>ℓ</jats:italic> = e or <jats:italic>μ</jats:italic>) are studied in the data collected with the CMS detector in 2017, in dedicated runs with reduced instantaneous luminosity. The data sets correspond to integrated luminosities of 298 ± 6 pb<jats:sup> <jats:italic>−</jats:italic>1</jats:sup> at 5.02 TeV and 206 ± 5 pb<jats:sup> <jats:italic>−</jats:italic>1</jats:sup> at 13 TeV. Measured values of the products of the total inclusive cross sections and the branching fractions at 5.02 TeV are <jats:italic>σ</jats:italic>(pp <jats:italic>→</jats:italic> W + X)<jats:inline-formula> <jats:alternatives> <jats:tex-math>$$ \mathcal{B} $$</jats:tex-math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>B</mml:mi> </mml:math> </jats:alternatives> </jats:inline-formula>(W <jats:italic>→ ℓν</jats:italic>) = 7300 <jats:italic>±</jats:italic> 10
  • 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, 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 Bruyn I, De Lentdecker G, Evard H, Favart L, Gianneios P, Jaramillo J, 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, 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, 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, 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 A, Deng S, Guo B, Jiang C, Levin Aet al., 2025,

    Measurement of the inclusive WZ production cross section in pp collisions at $$ \sqrt{\textrm{s}} $$ = 13.6 TeV

    , Journal of High Energy Physics, Vol: 2025

    <jats:title>A<jats:sc>bstract</jats:sc> </jats:title> <jats:p>The inclusive WZ production cross section is measured in proton-proton collisions at a centre-of-mass energy of 13.6 TeV, using data collected during 2022 with the CMS detector, corresponding to an integrated luminosity of 34<jats:italic>.</jats:italic>7 fb<jats:sup> <jats:italic>−</jats:italic>1</jats:sup>. The measurement uses multileptonic final states and a simultaneous likelihood fit to the number of events in four different lepton flavour categories: eee, ee<jats:italic>μ</jats:italic>, <jats:italic>μμ</jats:italic>e, and <jats:italic>μμμ</jats:italic>. The selection is optimized to minimize the number of background events, and relies on an efficient prompt lepton discrimination strategy. The WZ production cross section is measured in a phase space defined within a 30 GeV window around the Z boson mass, as <jats:italic>σ</jats:italic> <jats:sub>total</jats:sub> (pp → WZ) = 55<jats:italic>.</jats:italic>2 ± 1<jats:italic>.</jats:italic>2 (stat) ± 1<jats:italic>.</jats:italic>2 (syst) ± 0<jats:italic>.</jats:italic>8 (lumi) ± 0<jats:italic>.</jats:italic>3 (theo) pb. In addition, the cross section is measured in a fiducial phase space closer to the detector-level requirements. All the measurements presented in this paper are in agreement with standard model predictions.</jats:p>
  • 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, 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, 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, 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, Deng S, Guo B, Jiang C, Levin A, Li C, Li Q Met al., 2025,

    Measurement of the inclusive $$ \textrm{t}\overline{\textrm{t}} $$ cross section in final states with at least one lepton and additional jets with 302 pb−1 of pp collisions at $$ \sqrt{\textrm{s}} $$ = 5.02 TeV

    , Journal of High Energy Physics, Vol: 2025

    <jats:title>A<jats:sc>bstract</jats:sc> </jats:title> <jats:p>A measurement of the top quark pair (<jats:inline-formula> <jats:alternatives> <jats:tex-math>$$ \textrm{t}\overline{\textrm{t}} $$</jats:tex-math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>t</mml:mi> <mml:mover> <mml:mi>t</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> </jats:alternatives> </jats:inline-formula>) production cross section in proton-proton collisions at a centre-of-mass energy of 5.02 TeV is presented. The data were collected at the LHC in autumn 2017, in dedicated runs with low-energy and low-intensity conditions with respect to the default configuration, and correspond to an integrated luminosity of 302 pb<jats:sup> <jats:italic>−</jats:italic>1</jats:sup>. The measurement is performed using events with one electron or muon, and multiple jets, at least one of them being identified as originating from a b quark (b tagged). Events are classified based on the number of all reconstructed jets and of b-tagged jets. Multivariate analysis techniques are used to enhance the separation between the signal and backgrounds. The measured cross section is <jats:inline-formula> <jats:alternatives> <jats:tex-math>$$ 62.5\pm 1.6{\left(\textrm{stat}\right)}_{-2.5}^{+2.6}\left(\textrm{syst}\right)\pm 1.2\left(\textrm{lumi}\right) $$</jats:tex-math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mn>62.5</mml:mn> <mml:mo>±</mml:mo> <
  • 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, 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 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, 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, Deng S, Guo B, Jiang C, Levin A, Li C, Li Q, Mao Y, Qian S, Qian SJ, Qin X, Sun X, Waet al., 2025,

    Search for heavy long-lived charged particles with large ionization energy loss in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV

    , Journal of High Energy Physics, Vol: 2025

    <jats:title>A<jats:sc>bstract</jats:sc> </jats:title> <jats:p>A search for heavy, long-lived, charged particles with large ionization energy loss within the silicon tracker of the CMS experiment is presented. A data set of proton-proton collisions at a center of mass energy at <jats:inline-formula> <jats:alternatives> <jats:tex-math>$$ \sqrt{s} $$</jats:tex-math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> </jats:alternatives> </jats:inline-formula> = 13 TeV, collected in 2017 and 2018 at the CERN LHC, corresponding to an integrated luminosity of 101 fb<jats:sup> <jats:italic>−</jats:italic>1</jats:sup>, is used in this analysis. Two different approaches for the search are taken. A new method exploits the independence of the silicon pixel and strips measurements, while the second method improves on previous techniques using ionization to determine a mass selection. No significant excess of events above the background expectation is observed. The results are interpreted in the context of the pair production of supersymmetric particles, namely gluinos, top squarks, and tau sleptons, and of the Drell-Yan pair production of fourth generation (<jats:italic>τ</jats:italic>′) leptons with an electric charge equal to or twice the absolute value of the electron charge (<jats:italic>e</jats:italic>). An interpretation of a Z’ boson decaying to two <jats:italic>τ</jats:italic>′ leptons with an electric charge equal to 2<jats:italic>e</jats:italic> is presented for the first time. The 95% confidence upper limits on the production cros
  • Journal article
    Dutta A, Saha S, Urkude RR, Kumar R, Bhattacharyya D, Das Iet al., 2025,

    Disorder induced modification of Griffiths phase and observation of robust glassy magnetic behavior in multiferroic GaFeO<inf>3</inf> compound

    , Journal of Alloys and Compounds, Vol: 1021, ISSN: 0925-8388

    This article presents a comprehensive analysis of the magnetic properties of multiferroic GaFeO3 compound, to explore the Griffiths phase (GP) and robust glassy magnetic state. To investigate the origin of the GP and the robustness of glassy state, the intrinsic cationic disorder (or quenched disorder), which plays a pivotal role in appearing the exotic phenomena in this compound, has been tuned in a unique way of adjusting temperature cooling rates during the sample preparation. The bringing in disorder has been verified by performing full Rietveld refinement of the powder x-ray diffraction spectrum and analysing the extended x-ray absorption fine structure spectra. The enhancement in this disorder results in the emergence of the GP around the room temperature in those compounds, as confirmed by the conclusive experimental results and its theoretical fitting. The onset of the GP has been identified initially by the stair-like pattern in the inverse susceptibility curve. Subsequently, it has also been substantiated by the second harmonic ac susceptibility and meticulous zero-field magnetization measurements, viz., isothermal remanent magnetization and thermoremanent magnetization. However, on the contrary, in spite of having such enhancement in this intrinsic cationic disorder, no such significant change in the glassy magnetic behavior is observed for those compounds. Hence, in addition to the understanding of existing quenched disorder, the presence of magnetic inhomogeneity has also been substantiated from the critical analysis around the transition temperature. Eventually, how these effects give rise to the robust glassy magnetic phase and the GP that has been corroborated.
  • Journal article
    Hayrapetyan A, Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Del Valle AE, Hussain PS, Jeitler M, Krammer N, Lechner L, Liko D, Mikulec I, Schieck J, Schöfbeck R, Schwarz D, Sonawane M, Templ S, Waltenberger W, Wulz CE, Darwish MR, Janssen T, Van Mechelen P, Bols ES, DHondt J, Dansana S, De Moor A, Delcourt M, El Faham H, Lowette S, Makarenko I, Morton A, Müller 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, Pétré L, Postiau N, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, De Coen M, Dobur D, Knolle J, Lambrecht L, Mestdach G, Rendón C, Samalan A, Skovpen K, Van Den Bossche N, Vermassen B, 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, De Oliveira TM, Moraes A, Rebello Teles P, Soeiro M, Aldá 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, De Souza SF, Martins J, Mora Herrera Cet al., 2025,

    Search for Fractionally Charged Particles in Proton-Proton Collisions at (Formula presented)

    , Physical Review Letters, Vol: 134, ISSN: 0031-9007

    A search is presented for fractionally charged particles with charges below (Formula presented), using their small energy loss in the tracking detector as a key variable to observe a signal. The analyzed dataset corresponds to an integrated luminosity of (Formula presented) of proton-proton collisions collected at (Formula presented) in 2016-2018 at the CERN LHC. This is the first search at the LHC for new particles with a charge between (Formula presented) and (Formula presented), including an extension of previous results at a charge of (Formula presented). Masses up to 640 GeV and charges as low as (Formula presented) are excluded at 95% confidence level. These are the most stringent limits to date for the considered Drell-Yan-like production mode.
  • Journal article
    Saha S, Banik S, Dutta A, Paramanik T, Pakhira S, Dey S, Bandyopadhyay S, Mazumdar C, Das Iet al., 2025,

    Role of Co/Mn Interaction in Developing Griffiths Phase with Reducing Particle Size in La<inf>2</inf>CoMnO<inf>6</inf>

    , ACS Applied Materials and Interfaces, Vol: 17, Pages: 20060-20074, ISSN: 1944-8244

    A comprehensive study on the transition from the non-Griffiths phase (NGP) to the Griffiths phase (GP) is reported in double-perovskite La2CoMnO6 with the reduction of particle sizes. The bulk compound exhibits two ferromagnetic (FM) transitions, a prominent one below around TC ∼ 155 K and a weak one below TC1 ∼ 85 K. However, the materials in the nanocrystalline form show only one FM transition below TC ∼ 220 K. Interestingly, short-range FM interactions consisting of small FM clusters have been observed above TC for all of the systems. However, the nature of intercluster interactions of the preformed FM clusters in the PM matrix differs in bulk and nanomaterials. The antiferromagnetic (AFM) and FM intercluster interactions, respectively, result in the evolution of NGP in bulk and GP in nanomaterials. A detailed magnetization and transport study along with the theoretical analysis reveal that the existent AFM intercluster interaction and the enhanced antisite disorder (ASD) restrict the formation of GP in the bulk material. In contrast, due to the FM intercluster interaction and, as a consequence of the pronounced grain boundary as well as surface pressure effects in core-shell nanostructured materials, ASDs are reduced and GP emerges in those systems.
  • 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 CE, 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 WL, Barroso Ferreira Filho M, Brandao Malbouisson H, Carvalho W, Chinellato J, Da Costa EM, Da Silveira GG, De Jesus Damiao Det al., 2025,

    Proton reconstruction with the TOTEM Roman pot detectors for high-β<sup>∗</sup> LHC data

    , Journal of Instrumentation, Vol: 20

    The TOTEM Roman pot detectors are used to reconstruct the transverse momentum of scattered protons and to estimate the transverse location of the primary interaction. This paper presents new methods of track reconstruction, measurements of strip-level detection efficiencies, cross-checks of the LHC beam optics, and detector alignment techniques, along with their application in the selection of signal collision events. The track reconstruction is performed by exploiting hit cluster information through a novel method using a common polygonal area in the intercept-slope plane. The technique is applied in the relative alignment of detector layers with μm precision. A tag-and-probe method is used to extract strip-level detection efficiencies. The alignment of the Roman pot system is performed through time-dependent adjustments, resulting in a position accuracy of 3 μm in the horizontal and 60 μm in the vertical directions. The goal is to provide an optimal reconstruction tool for central exclusive physics analyses based on the high-β∗ data-taking period at √s = 13 TeV in 2018.
  • 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, 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, 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, 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 Aet al., 2025,

    Identification of low-momentum muons in the CMS detector using multivariate techniques in proton-proton collisions at sqrt(s) = 13.6 TeV

    , Journal of Instrumentation, Vol: 20, Pages: P04021-P04021

    <jats:title>Abstract</jats:title> <jats:p>“Soft” muons with a transverse momentum below 10 GeV are featured in many processes studied by the CMS experiment, such as decays of heavy-flavor hadrons or rare tau lepton decays. Maximizing the selection efficiency for these muons, while simultaneously suppressing backgrounds from long-lived light-flavor hadron decays, is therefore important for the success of the CMS physics program. Multivariate techniques have been shown to deliver better muon identification performance than traditional selection techniques. To take full advantage of the large data set currently being collected during Run 3 of the CERN LHC, a new multivariate classifier based on a gradient-boosted decision tree has been developed. It offers a significantly improved separation of signal and background muons compared to a similar classifier used for the analysis of the Run 2 data. The performance of the new classifier is evaluated on a data set collected with the CMS detector in 2022 and 2023, corresponding to an integrated luminosity of 62 fb<jats:sup>-1</jats:sup>.</jats:p>
  • Journal article
    Schueler J, Araújo HM, Balashov SN, Borg JE, Brew C, Brunbauer FM, Cazzaniga C, Cottle A, Frost CD, Garcia F, Hunt D, Kaboth AC, Kastriotou M, Katsioulas I, Khazov A, Knights P, Kraus H, Kudryavtsev VA, Lilley S, Lindote A, Lisowska M, Loomba D, Lopes MI, Lopez Asamar E, Luna Dapica P, Majewski PA, Marley T, McCabe C, Millins L, Mills AF, Nakhostin M, Nandakumar R, Neep T, Neves F, Nikolopoulos K, Oliveri E, Ropelewski L, Solovov VN, Sumner TJ, Tarrant J, Tilly E, Turnley R, Veenhof Ret al., 2025,

    Transforming a rare event search into a not-so-rare event search in real-time with deep learning-based object detection

    , Physical Review D, Vol: 111, ISSN: 2470-0010

    Deep learning-based object detection algorithms enable the simultaneous classification and localization of any number of objects in image data. Many of these algorithms are capable of operating in real-time on high resolution images, attributing to their widespread usage across many fields. We present an end-to-end object detection pipeline designed for rare event searches for the Migdal effect, at real-time speeds, using high-resolution image data from the scientific CMOS camera readout of the MIGDAL experiment. The Migdal effect in nuclear scattering, critical for sub-GeV dark matter searches, has yet to be experimentally confirmed, making its detection a primary goal of the MIGDAL experiment. The Migdal effect forms a composite rare event signal topology consisting of an electronic and nuclear recoil sharing the same vertex. Crucially, both recoil species are commonly observed in isolation in the MIGDAL experiment, enabling us to train YOLOv8, a state-of-the-art object detection algorithm, on real data. Topologies indicative of the Migdal effect can then be identified in science data via pairs of neighboring or overlapping electron and nuclear recoils. Applying selections to real data that retain 99.7% signal acceptance in simulations, we demonstrate our pipeline to reduce a sample of 20 million recorded images to fewer than 1000 frames, thereby transforming a rare search into a much more manageable search. More broadly, we discuss the applicability of using object detection to enable data-driven machine learning training for other rare event search applications such as neutrinoless double beta decay searches and experiments imaging exotic nuclear decays.
  • 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 CE, 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, 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, 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 WL, Barroso Ferreira Filho M, Brandao Malbouisson H, Carvalho W, Chinellato J, Da Costa EMet al., 2025,

    Energy-scaling behavior of intrinsic transverse-momentum parameters in Drell-Yan simulation

    , Physical Review D, Vol: 111, ISSN: 2470-0010

    An analysis is presented based on models of the intrinsic transverse momentum (intrinsic (Formula presented)) of partons in nucleons by studying the dilepton transverse momentum in Drell-Yan events. Using parameter tuning in event generators and existing data from fixed-target experiments and from hadron colliders, our investigation spans 3 orders of magnitude in center-of-mass energy and 2 orders of magnitude in dilepton invariant mass. The results show an energy-scaling behavior of the intrinsic (Formula presented) parameters, independent of the dilepton invariant mass at a given center-of-mass energy.
  • Journal article
    , 2025,

    Enriching the physics program of the CMS experiment via data scouting and data parking

    , Physics Reports, Vol: 1115, Pages: 678-772, ISSN: 0370-1573
  • Journal article
    , 2025,

    Dark sector searches with the CMS experiment

    , Physics Reports, Vol: 1115, Pages: 448-569, ISSN: 0370-1573
  • Journal article
    , 2025,

    Overview of high-density QCD studies with the CMS experiment at the LHC

    , Physics Reports, Vol: 1115, Pages: 219-367, ISSN: 0370-1573
  • Journal article
    , 2025,

    Stairway to discovery: A report on the CMS programme of cross section measurements from millibarns to femtobarns

    , Physics Reports, Vol: 1115, Pages: 3-115, ISSN: 0370-1573
  • Journal article
    , 2025,

    Review of searches for vector-like quarks, vector-like leptons, and heavy neutral leptons in proton–proton collisions at √s=13 TeV at the CMS experiment

    , Physics Reports, Vol: 1115, Pages: 570-677, ISSN: 0370-1573
  • Journal article
    , 2025,

    Searches for Higgs boson production through decays of heavy resonances

    , Physics Reports, Vol: 1115, Pages: 368-447, ISSN: 0370-1573
  • Journal article
    , 2025,

    Review of top quark mass measurements in CMS

    , Physics Reports, Vol: 1115, Pages: 116-218, ISSN: 0370-1573
  • 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, 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, Bartolini M, Bartz J, Basels JM, Bashir S, Bassi G, Batsukh B, Battista PB, Bay A, Beck A, Becker M, Bedeschi F, Bediaga IB, Behling NA, Belin S, Bellee V, 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, 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, Bouchiba SA, Bovill M, Bowcock TJV, Boyer A, Bozzi C, Brea Rodriguez A, Breer N, Brodzicka J, Brossa Gonzalo A, Brown J, Brundu D, Buchanan E, Buonaura A, Buonincontri L, Burke AT, Burr C, Butter JS, Buytaert J, Byczynski W, Cadeddu S, Cai H, Caillet AC, 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, Caet al., 2025,

    Test of Lepton Flavor Universality with B_{s}^{0}→ϕℓ^{+}ℓ^{-} Decays.

    , Phys Rev Lett, Vol: 134

    Lepton flavor universality in rare b→s transitions is tested for the first time using B_{s}^{0} meson decays. The measurements are performed using pp collision data collected by the LHCb experiment between 2011 and 2018, corresponding to a total integrated luminosity of 9  fb^{-1}. Branching fraction ratios between the B_{s}^{0}→ϕe^{+}e^{-} and B_{s}^{0}→ϕμ^{+}μ^{-} decays are measured in three regions of dilepton mass squared, q^{2}, with 0.1<q^{2}<1.1, 1.1<q^{2}<6.0, and 15<q^{2}<19  GeV^{2}/c^{4}. The results agree with the standard model expectation of lepton flavor universality.
  • 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, Laer TV, Mechelen PV, Breugelmans N, DHondt J, Dansana S, De Moor A, Delcourt M, Heyen F, Lowette S, Makarenko I, Müller D, Tavernier S, Tytgat M, Onsem GPV, Putte SV, 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, Bemden MV, Velde CV, Vanlaer P, De Coen M, Dobur D, Gokbulut G, Hong Y, Knolle J, Lambrecht L, Marckx D, Amarilo KM, Skovpen K, Bossche NVD, 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, Turkcapar S, Alves GA, Coelho E, Silva GC, Hensel C, De Oliveira TM, Herrera CM, Teles PR, Soeiro M, Manganote EJT, Pereira AV, Júnior WLA, Filho MBF, Malbouisson HB, Carvalho W, Chinellato J, Da Costa EM, Da Silveira GG, De Jesus Damiao D, De Souza SF, De Souza RG, Kuhn TL, Macedo M, Martins J, Mundim L, Nogima H, Pinheiro JP, Santoro A, Sznajder A, Thiel M, Bernardes CA, Calligaris L, Tomei TRFP, Gregores EM, Silverio IM, 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, Deng S, Guo B, Jiang C, Levin A, Li C, Li Q, Mao Y, Qian S, Qian SJ, Qin X, Sun X, Wang D, Yang H, Zhang L, Zhao Y, Zhou C, Yang S, You Z, Jaffel K, Lu N, Bauer G, Li B, Yi K, Zhang Jet al., 2025,

    Search for pair production of heavy particles decaying to a top quark and a gluon in the lepton+jets final state in proton–proton collisions at $$\sqrt{s}=13\,\text {Te}\hspace{-.08em}\text {V} $$

    , The European Physical Journal C, Vol: 85

    <jats:title>Abstract</jats:title> <jats:p>A search is presented for the pair production of new heavy resonances, each decaying into a top quark (t) or antiquark and a gluon (g). The analysis uses data recorded with the CMS detector from proton–proton collisions at a center-of-mass energy of 13<jats:inline-formula> <jats:alternatives> <jats:tex-math>$$\,\text {Te}\hspace{-.08em}\text {V}$$</jats:tex-math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mspace/> <mml:mtext>Te</mml:mtext> <mml:mspace/> <mml:mtext>V</mml:mtext> </mml:mrow> </mml:math> </jats:alternatives> </jats:inline-formula> at the LHC, corresponding to an integrated luminosity of 138<jats:inline-formula> <jats:alternatives> <jats:tex-math>$$\,\text {fb}^{-1}$$</jats:tex-math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mspace/> <mml:msup> <mml:mtext>fb</mml:mtext> <mml:mrow> <mml:mo>-</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msup> </mml:mrow> </mml:math> </jats:alternatives> </jats:inline-formula>. Events with one muon or electron, multiple jets, and missing transverse momentum are selected. After using a deep neural network to enrich the data sample with signal-like events, distributions in the scalar su
  • 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, 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, 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, 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, Mestdach G, Mota Amarilo K, Samalan A, 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, 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, Macedo M, Martins J, Mora Herrera C, 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, 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, Deng S, Guo B, Jiang C, Levin A, Li C, Li Qet al., 2025,

    Search for Nuclear Modifications of B^{+} Meson Production in p-Pb Collisions at sqrt[s_{NN}]=8.16  TeV.

    , Phys Rev Lett, Vol: 134

    Nuclear medium effects on B^{+} meson production are studied using the binary-collision scaled cross section ratio between events of different charged-particle multiplicities from proton-lead collisions. Data, collected by the CMS experiment in 2016 at a nucleon-nucleon center-of-mass energy of sqrt[s_{NN}]=8.16  TeV, corresponding to an integrated luminosity of 175  nb^{-1}, were used. The scaling factors in the ratio are determined using a novel approach based on the Z→μ^{-}μ^{+} cross sections measured in the same events. The scaled ratio for B^{+} is consistent with unity for all event multiplicities, putting stringent constraints on nuclear modification for heavy flavor.
  • 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, 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, Bartolini M, Bartz J, Basels JM, Bashir S, Bassi G, 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, 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, Bouchiba SA, Bovill M, Bowcock TJV, Boyer A, Bozzi C, Brea Rodriguez A, Breer N, Brodzicka J, Brossa Gonzalo A, Brown J, Brundu D, Buchanan E, Buonaura A, Buonincontri L, Burke AT, Burr C, Butter JS, Buytaert J, Byczynski W, Cadeddu S, Cai H, Caillet AC, 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 Open-Charm Tetraquark Candidate T_{cs0}^{*}(2870)^{0} in the B^{-}→D^{-}D^{0}K_{S}^{0} Decay.

    , Phys Rev Lett, Vol: 134

    An amplitude analysis of B^{-}→D^{-}D^{0}K_{S}^{0} decays is performed using proton-proton collision data, corresponding to an integrated luminosity of 9  fb^{-1}, collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. A resonant structure of spin-parity 0^{+} is observed in the D^{0}K_{S}^{0} invariant-mass spectrum with a significance of 5.3σ. The mass and width of the state, modeled with a Breit-Wigner line shape, are determined to be 2883±11±8  MeV/c^{2} and 87_{-47}^{+22}±17  MeV, respectively, where the first uncertainties are statistical and the second systematic. These properties and the quark content are consistent with those of the open-charm tetraquark candidate T_{cs0}^{*}(2870)^{0} observed previously in the D^{+}K^{-} final state of the B^{-}→D^{-}D^{+}K^{-} decay. This result confirms the existence of the T_{cs0}^{*}(2870)^{0} state in a new decay mode. The T_{cs1}^{*}(2900)^{0} state, reported in the B^{-}→D^{-}D^{+}K^{-} decay, is also searched for in the D^{0}K_{S}^{0} invariant-mass spectrum of the B^{-}→D^{-}D^{0}K_{S}^{0} decay, without finding evidence for it.
  • 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, 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, Bartolini M, Bartz J, Basels JM, Bashir S, Bassi G, 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, 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, Bouchiba SA, Bovill M, Bowcock TJV, Boyer A, Bozzi C, Brea Rodriguez A, Breer N, Brodzicka J, Brossa Gonzalo A, Brown J, Brundu D, Buchanan E, Buonaura A, Buonincontri L, Burke AT, Burr C, Butter JS, Buytaert J, Byczynski W, Cadeddu S, Cai H, Caillet AC, 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,

    Study of Λ_{b}^{0} and Ξ_{b}^{0} Decays to Λh^{+}h^{'-} and Evidence for CP Violation in Λ_{b}^{0}→ΛK^{+}K^{-} Decays.

    , Phys Rev Lett, Vol: 134

    A study of Λ_{b}^{0} and Ξ_{b}^{0} decays to Λh^{+}h^{'-} (h^{(')}=π,K) is performed using pp collision data collected by the LHCb experiment during LHC Runs 1-2, corresponding to an integrated luminosity of 9  fb^{-1}. The branching fractions for these decays are measured using the Λ_{b}^{0}→Λ_{c}^{+}(→Λπ^{+})π^{-} decay as a control channel. The decays Λ_{b}^{0}→Λπ^{+}π^{-} and Ξ_{b}^{0}→ΛK^{-}π^{+} are observed for the first time. For decay modes with sufficient signal yields, CP asymmetries are measured in the full and localized regions of the final-state phase space. Evidence is found for CP violation in the Λ_{b}^{0}→ΛK^{+}K^{-} decay, interpreted as originating primarily from an asymmetric Λ_{b}^{0}→N^{*+}K^{-} decay amplitude. The measured CP asymmetries for other decays are compatible with zero.
  • 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, 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, Bartolini M, Bartz J, Basels JM, Bashir S, Bassi G, Batsukh B, Battista PB, Bay A, Beck A, Becker M, Bedeschi F, Bediaga IB, Behling NA, Belin S, Bellee V, 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, 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, Bouchiba SA, Bovill M, Bowcock TJV, Boyer A, Bozzi C, Brea Rodriguez A, Breer N, Brodzicka J, Brossa Gonzalo A, Brown J, Brundu D, Buchanan E, Buonaura A, Buonincontri L, Burke AT, Burr C, Butter JS, Buytaert J, Byczynski W, Cadeddu S, Cai H, Caillet AC, 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, Caet al., 2025,

    First Evidence for Direct CP Violation in Beauty to Charmonium Decays.

    , Phys Rev Lett, Vol: 134

    The CP asymmetry and branching fraction of the Cabibbo-Kobayashi-Maskawa-suppressed decay B^{+}→J/ψπ^{+} are precisely measured relative to the favored decay B^{+}→J/ψK^{+} using a sample of proton-proton collision data corresponding to an integrated luminosity of 5.4  fb^{-1} recorded at a center-of-mass energy of 13 TeV during 2016-2018. The results of the CP asymmetry difference and branching fraction ratio are ΔA^{CP}≡A^{CP}(B^{+}→J/ψπ^{+})-A^{CP}(B^{+}→J/ψK^{+})=(1.29±0.49±0.08)×10^{-2}, R_{π/K}≡[B(B^{+}→J/ψπ^{+})/B(B^{+}→J/ψK^{+})]=(3.852±0.022±0.018)×10^{-2}, where the first uncertainties are statistical and the second are systematic. A combination with previous LHCb results based on data collected at 7 and 8 TeV in 2011 and 2012 yields ΔA^{CP}=(1.42±0.43±0.08)×10^{-2} and R_{π/K}=(3.846±0.018±0.018)×10^{-2}. The combined ΔA^{CP} value deviates from zero by 3.2 standard deviations, providing the first evidence for direct CP violation in the amplitudes of beauty decays to charmonium final states.
  • 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, 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, 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 Aet al., 2025,

    Constraints on standard model effective field theory for a Higgs boson produced in association with W or Z bosons in the H → $$ \textrm{b}\overline{\textrm{b}} $$ decay channel in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV

    , Journal of High Energy Physics, Vol: 2025

    <jats:title>A<jats:sc>bstract</jats:sc> </jats:title> <jats:p>A standard model effective field theory (SMEFT) analysis with dimension-six operators probing nonresonant new physics effects is performed in the Higgs-strahlung process, where the Higgs boson is produced in association with a W or Z boson, in proton-proton collisions at a center-of-mass energy of 13 TeV. The final states in which the W or Z boson decays leptonically and the Higgs boson decays to a pair of bottom quarks are considered. The analyzed data were collected by the CMS experiment between 2016 and 2018 and correspond to an integrated luminosity of 138 fb<jats:sup> <jats:italic>−</jats:italic>1</jats:sup>. An approach designed to simultaneously optimize the sensitivity to Wilson coefficients of multiple SMEFT operators is employed. Likelihood scans as functions of the Wilson coefficients that carry SMEFT sensitivity in this final state are performed for different expansions in SMEFT. The results are consistent with the predictions of the standard model.</jats:p>
  • 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, 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, 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, Bartolini M, Bartz J, Basels JM, Bashir S, Bassi G, Batsukh B, Battista PB, Bay A, Beck A, Becker M, Bedeschi F, Bediaga IB, Behling NA, Belin S, Bellee V, 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, Bhom J, Bieker MS, Biesuz NV, Billoir P, Biolchini A, Birch M, Bishop FCR, Bitadze A, Bizzeti A, Blake T, Blanc Fet al., 2025,

    Constraints on the photon polarisation in b → sγ transitions using Bs0→ ϕe<sup>+</sup>e<sup>−</sup> decays

    , Journal of High Energy Physics, Vol: 2025

    An angular analysis of the Bs0→ ϕe+e− decay is performed using the proton-proton collision dataset collected between 2011 and 2018 by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV. The analysis is performed in the very low dielectron invariant mass-squared region between 0.0009 and 0.2615 GeV2/c4. The longitudinal polarisation fraction of the ϕ meson is measured to be less than 11.5% at 90% confidence level. The ATReCP observable, which is related to the lepton forward-backward asymmetry, is measured to be 0.116 ± 0.155 ± 0.006, where the first uncertainty is statistical and the second systematic. The transverse asymmetries, AT2 and ATImCP, which are sensitive to the virtual photon polarisation, are found to be −0.045 ± 0.235 ± 0.014 and 0.002 ± 0.247 ± 0.016, respectively. The results are consistent with Standard Model predictions.

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