Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at √ s=13 TeV
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Sirunyan, A.M.; Brochero Cifuentes, Javier Andrés; Cabrillo Bartolomé, José Ibán; Calderón Tazón, Alicia; Chazin Quero, Bárbara; Duarte Campderros, Jorge; Fernández García, Marcos; Fernández Manteca, Pedro José; García Alonso, Andrea; Gómez Gramuglio, Gervasio; Martínez Rivero, Celso; Martínez Ruiz del Árbol, Pablo; Matorras Weinig, Francisco; Piedra Gómez, Jonatan; Prieëls, Cedric; Ricci-Tam, Francesca Shun-Ning Annarosa; Rodrigo Anoro, Teresa; Ruiz Jimeno, Alberto; Scodellaro, Luca; [et al.]Fecha
2021-04-14Derechos
Attribution 4.0 International © CERN, for the benefit of the CMS collaboration
Publicado en
Journal of High Energy Physics, 2021, 04, 123
Editorial
Springer Verlag
Palabras clave
Hadron-Hadron scattering (experiments)
Supersymmetry
Resumen/Abstract
A search for phenomena beyond the standard model in final states with two oppositely charged same-flavor leptons and missing transverse momentum is presented. The search uses a data sample of proton-proton collisions at p s = 13TeV, corresponding to an integrated luminosity of 137 fb−1, collected by the CMS experiment at the LHC. Three potential signatures of physics beyond the standard model are explored: an excess of events with a lepton pair, whose invariant mass is consistent with the Z boson mass; a kinematic edge in the invariant mass distribution of the lepton pair; and the nonresonant production of two leptons. The observed event yields are consistent with those expected from standard model backgrounds. The results of the first search allow the exclusion of gluino masses up to 1870 GeV, as well as chargino (neutralino) masses up to 750 (800) Ge V, while those of the searches for the other two signatures allow the exclusion of lightflavor (bottom) squark masses up to 1800 (1600) GeV and slepton masses up to 700 GeV, respectively, at 95% confidence level within certain supersymmetry scenarios.
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