Search for squarks and gluinos in final states with one isolated lepton, jets, and missing transverse momentum at √s = 13 TeV with the ATLAS detector

0553638 - FZÚ 2022 RIV DE eng J - Journal Article
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 … Total 2936 authors
Search for squarks and gluinos in final states with one isolated lepton, jets, and missing transverse momentum at √s = 13 TeV with the ATLAS detector.
European Physical Journal C. Roč. 81, č. 7 (2021), č. článku 600. ISSN 1434-6044. E-ISSN 1434-6052
R&D Projects: GA MŠMT(CZ) LTT17018
Research Infrastructure: CERN-CZ II - 90104
Institutional support: RVO:68378271
Keywords : ATLAS * CERN * p p: colliding beams * W: pair production
OECD category: Particles and field physics
Impact factor: 4.994, year: 2021
Method of publishing: Open access

The results of a search for gluino and squark pair production with the pairs decaying via the lightest charginos into a final state consisting of two WWW bosons, the lightest neutralinos (χ~10 ildechi^0_1χ~​10​), and quarks, are presented. The signal is characterised by the presence of a single charged lepton (e±e^{pm}e± or μ±mu^{pm}μ±) from a WWW boson decay, jets, and missing transverse momentum. The analysis is performed using 139 fb−1^{-1}−1 of proton-proton collision data taken at a centre-of-mass energy s=13sqrt{s}=13s ​=13 TeV delivered by the Large Hadron Collider and recorded by the ATLAS experiment. No statistically significant excess of events above the Standard Model expectation is found. Limits are set on the direct production of squarks and gluinos in simplified models. Masses of gluino (squark) up to 2.2 TeV (1.4 TeV) are excluded at 95% confidence level for a light χ~10 ildechi^0_1χ~​10​.
Permanent Link: http://hdl.handle.net/11104/0328389