Search for supersymmetry in events with four or more charged leptons in 139 fb.sup.−1./sup. of √s = 13 TeV pp collisions with the ATLAS detector

0552062 - FZÚ 2022 RIV US eng J - Článek v odborném periodiku
Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Latoňová, Věra - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … celkem 2932 autorů
Search for supersymmetry in events with four or more charged leptons in 139 fb⁻¹ of √s = 13 TeV pp collisions with the ATLAS detector.
Journal of High Energy Physics. Roč. 2021, č. 7 (2021), č. článku 167. ISSN 1029-8479. E-ISSN 1029-8479
Grant CEP: GA MŠMT(CZ) LTT17018
Výzkumná infrastruktura: CERN-CZ II - 90104
Institucionální podpora: RVO:68378271
Klíčová slova: ATLAS * CERN LHC Coll * R parity: violation
Obor OECD: Particles and field physics
Impakt faktor: 6.376, rok: 2021
Způsob publikování: Open access

A search for supersymmetry in events with four or more charged leptons (electrons, muons and τ auτ-leptons) is presented. The analysis uses a data sample corresponding to 139,mbox{fb(^{-1})} of proton-proton collisions delivered by the Large Hadron Collider at s=13sqrt{s}=13s ​=13 TeV and recorded by the ATLAS detector. Four-lepton signal regions with up to two hadronically decaying τ auτ-leptons are designed to target several supersymmetric models, while a general five-lepton signal region targets any new physics phenomena leading to a final state with five charged leptons. Data yields are consistent with Standard Model expectations and results are used to set upper limits on contributions from processes beyond the Standard Model. Exclusion limits are set at the 95% confidence level in simplified models of general gauge-mediated supersymmetry, excluding higgsino masses up to 540540540 GeV.

Trvalý link: http://hdl.handle.net/11104/0327226