Search for displaced leptons in √s =13 TeV pp collisions with the ATLAS detector

0548988 - 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 2836 autorů
Search for displaced leptons in √s =13 TeV pp collisions with the ATLAS detector.
Physical Review D. Roč. 127, č. 5 (2021), č. článku 051802. ISSN 2470-0010. E-ISSN 2470-0029
Grant CEP: GA MŠk(CZ) LTT17018
Výzkumná infrastruktura: CERN-CZ II - 90104
Institucionální podpora: RVO:68378271
Klíčová slova: ATLAS * CERN LHC Coll * lepton: impact parameter * final state: (dilepton)
Obor OECD: Particles and field physics
Impakt faktor: 5.407, rok: 2021
Způsob publikování: Open access

A search for charged leptons with large impact parameters using 139  fb−1 of s=13  TeV pp collision data from the ATLAS detector at the LHC is presented, addressing a long-standing gap in coverage of possible new physics signatures. Results are consistent with the background prediction. This search provides unique sensitivity to long-lived scalar supersymmetric lepton partners (sleptons). For lifetimes of 0.1 ns, selectron, smuon, and stau masses up to 720, 680, and 340  GeV, respectively, are excluded at 95% confidence level, drastically improving on the previous best limits from LEP.
Trvalý link: http://hdl.handle.net/11104/0325021