BibTex format
@article{Chekhovsky:2025:10.1007/jhep08(2025)085,
author = {Chekhovsky, V and Hayrapetyan, A and Makarenko, V and Tumasyan, A and Adam, W and Andrejkovic, JW and Benato, L and Bergauer, T and Chatterjee, S and Damanakis, K and Dragicevic, M and Hussain, PS and Jeitler, M and Krammer, N and Li, A and Liko, D and Mikulec, I and Schieck, J and Schöfbeck, R and Schwarz, D and Sonawane, M and Waltenberger, W and Wulz, C-E and Janssen, T and Kwon, H and Van, Laer T and Van, Mechelen P and Breugelmans, N and DHondt, J and Dansana, S and De, Moor A and Delcourt, M and Heyen, F and Hong, Y and Lowette, S and Makarenko, I and Müller, D and Tavernier, S and Tytgat, M and Van, Onsem GP and Van, Putte S and Vannerom, D and Bilin, B and Clerbaux, B and Das, AK and De, Bruyn I and De, Lentdecker G and Evard, H and Favart, L and Gianneios, P and Khalilzadeh, A and Khan, FA and Lee, K and Malara, A and Shahzad, MA and Thomas, L and Vanden, Bemden M and Vander, Velde C and Vanlaer, P and De, Coen M and Dobur, D and Gokbulut, G and Knolle, J and Lambrecht, L and },
doi = {10.1007/jhep08(2025)085},
journal = {Journal of High Energy Physics},
title = {Search for dark matter produced in association with one or two top quarks in proton-proton collisions at $$\sqrt(\text(s))$$ = 13 TeV},
url = {http://dx.doi.org/10.1007/jhep08(2025)085},
volume = {2025},
year = {2025}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - <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>
AU - Chekhovsky,V
AU - Hayrapetyan,A
AU - Makarenko,V
AU - Tumasyan,A
AU - Adam,W
AU - Andrejkovic,JW
AU - Benato,L
AU - Bergauer,T
AU - Chatterjee,S
AU - Damanakis,K
AU - Dragicevic,M
AU - Hussain,PS
AU - Jeitler,M
AU - Krammer,N
AU - Li,A
AU - Liko,D
AU - Mikulec,I
AU - Schieck,J
AU - Schöfbeck,R
AU - Schwarz,D
AU - Sonawane,M
AU - Waltenberger,W
AU - Wulz,C-E
AU - Janssen,T
AU - Kwon,H
AU - Van,Laer T
AU - Van,Mechelen P
AU - Breugelmans,N
AU - DHondt,J
AU - Dansana,S
AU - De,Moor A
AU - Delcourt,M
AU - Heyen,F
AU - Hong,Y
AU - Lowette,S
AU - Makarenko,I
AU - Müller,D
AU - Tavernier,S
AU - Tytgat,M
AU - Van,Onsem GP
AU - Van,Putte S
AU - Vannerom,D
AU - Bilin,B
AU - Clerbaux,B
AU - Das,AK
AU - De,Bruyn I
AU - De,Lentdecker G
AU - Evard,H
AU - Favart,L
AU - Gianneios,P
AU - Khalilzadeh,A
AU - Khan,FA
AU - Lee,K
AU - Malara,A
AU - Shahzad,MA
AU - Thomas,L
AU - Vanden,Bemden M
AU - Vander,Velde C
AU - Vanlaer,P
AU - De,Coen M
AU - Dobur,D
AU - Gokbulut,G
AU - Knolle,J
AU - Lambrecht,L
AU - Marckx,D
AU - Skovpen,K
AU - Van,Den Bossche N
AU - van,der Linden J
AU - Wezenbeek,L
AU - Bein,S
AU - Benecke,A
AU - Bethani,A
AU - Bruno,G
AU - Caputo,C
AU - De,Favereau De Jeneret J
AU - Delaere,C
AU - Donertas,IS
AU - Giammanco,A
AU - Guzel,AO
AU - Jain,S
AU - Lemaitre,V
AU - Lidrych,J
AU - Mastrapasqua,P
AU - Tran,TT
AU - Turkcapar,S
AU - Alves,GA
AU - Coelho,E
AU - Correia,Silva G
AU - Hensel,C
AU - Menezes,De Oliveira T
AU - Mora,Herrera C
AU - Rebello,Teles P
AU - Soeiro,M
AU - Tonelli,Manganote EJ
AU - Vilela,Pereira A
AU - Aldá,Júnior WL
AU - Barroso,Ferreira Filho M
AU - Brandao,Malbouisson H
AU - Carvalho,W
AU - Chinellato,J
AU - Da,Costa EM
AU - Da,Silveira GG
AU - De,Jesus Damiao D
AU - Fonseca,De Souza S
AU - Gomes,De Souza R
AU - Laux,Kuhn T
AU - Macedo,M
AU - Martins,J
AU - Mota,Amarilo K
AU - Mundim,L
AU - Nogima,H
AU - Pinheiro,JP
AU - Santoro,A
AU - Sznajder,A
AU - Thiel,M
AU - Bernardes,CA
AU - Calligaris,L
AU - Fernandez,Perez Tomei TR
AU - Gregores,EM
AU - Maietto,Silverio I
AU - Mercadante,PG
AU - Novaes,SF
AU - Orzari,B
AU - Padula,SS
AU - Aleksandrov,A
AU - Antchev,G
AU - Hadjiiska,R
AU - Iaydjiev,P
AU - Misheva,M
AU - Shopova,M
AU - Sultanov,G
AU - Dimitrov,A
AU - Litov,L
AU - Pavlov,B
AU - Petkov,P
AU - Petrov,A
AU - Shumka,E
AU - Keshri,S
AU - Laroze,D
AU - Thakur,S
AU - Cheng,T
AU - Javaid,T
AU - Yuan,L
AU - Hu,Z
AU - Liang,Z
AU - Liu,J
AU - Chen,GM
AU - Chen,HS
AU - Chen,M
AU - Iemmi,F
AU - Jiang,CH
AU - Kapoor,A
AU - Liao,H
AU - Liu,Z-A
AU - Sharma,R
AU - Song,JN
AU - Tao,J
AU - Wang,C
AU - Wang,J
AU - Wang,Z
AU - Zhang,H
AU - Zhao,J
AU - Agapitos,A
AU - Ban,Y
AU - Carvalho,Antunes De Oliveira A
DO - 10.1007/jhep08(2025)085
PY - 2025///
TI - Search for dark matter produced in association with one or two top quarks in proton-proton collisions at $$\sqrt{\text{s}}$$ = 13 TeV
T2 - Journal of High Energy Physics
UR - http://dx.doi.org/10.1007/jhep08(2025)085
UR - https://doi.org/10.1007/jhep08(2025)085
VL - 2025
ER -