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
| dc.contributor.author | Çetin, Serkant Ali | |
| dc.date.accessioned | 2022-10-18T09:35:39Z | |
| dc.date.available | 2022-10-18T09:35:39Z | |
| dc.date.issued | 2022-07 | |
| dc.department | Fakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümü | en_US |
| dc.description.abstract | Abstract: 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 s = 13 TeV between 2015 and 2018 with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 136 fb- 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. No excess above the expected backgrounds is observed. Exclusion limits are set at 95% confidence level on the masses of the chargino and gluino for different chargino lifetimes. Chargino masses up to 660 (210) GeV are excluded in scenarios where the chargino is a pure wino (higgsino). For charginos produced during the cascade decay of a heavy gluino, gluinos with masses below 2.1 TeV are excluded for a chargino mass of 300 GeV and a lifetime of 0.2 ns. © 2022, The Author(s). | en_US |
| dc.fullTextLevel | Full Text | en_US |
| dc.identifier.doi | 10.1140/epjc/s10052-022-10489-5 | |
| dc.identifier.issn | 1434-6044 | |
| dc.identifier.scopus | 2-s2.0-85130534482 | en_US |
| dc.identifier.uri | https://hdl.handle.net/11411/4586 | |
| dc.identifier.uri | https://doi.org/10.1140/epjc/s10052-022-10489-5 | |
| dc.identifier.wos | WOS:000824937700003 | en_US |
| dc.identifier.wosquality | Q1 | en_US |
| dc.indekslendigikaynak | Web of Science | en_US |
| dc.indekslendigikaynak | Scopus | en_US |
| dc.issue | 7 | en_US |
| dc.language.iso | en | en_US |
| dc.national | International | en_US |
| dc.numberofauthors | 100+ | en_US |
| dc.publisher | Springer Science and Business Media Deutschland GmbH | en_US |
| dc.relation.ispartof | European Physical Journal C | en_US |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.title | 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 | |
| dc.type | Article | |
| dc.volume | 82 | en_US |
