Search for long-lived charginos based on a disappearing-track signature using 136 fb .sup.-1./sup. of pp collisions at √s = 13 TeV with the ATLAS detector

0562709 - FZÚ 2023 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 2863 authors
Search for long-lived charginos based on a disappearing-track signature using 136 fb ^-1 of pp collisions at √s = 13 TeV with the ATLAS detector.
European Physical Journal C. Roč. 82, č. 7 (2022), č. článku 606. ISSN 1434-6044. E-ISSN 1434-6052
Research Infrastructure: CERN-CZ II - 90104; e-INFRA CZ - 90140
Institutional support: RVO:68378271
Keywords : chargino: lifetime * charged particle: long-lived * Higgsino
OECD category: Particles and field physics
Impact factor: 4.4, year: 2022
Method of publishing: Open access

A search for long-lived charginos produced either directly or in the cascade decay of heavy prompt gluino states is presented. The search is based on proton–proton collision data collected at a centre-of-mass energy of ss ​ = 13 TeVeV between 2015 and 2018 with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 136 fb−1−1. Long-lived charginos are characterised by a distinct signature of a short and then disappearing track, and are reconstructed using at least four measurements in the ATLAS pixel detector, with no subsequent measurements in the silicon-microstrip tracking volume nor any associated energy deposits in the calorimeter. The final state is complemented by a large missing transverse-momentum requirement for triggering purposes and at least one high-transverse-momentum jet.
Permanent Link: https://hdl.handle.net/11104/0336465