Inclusive and differential cross-sections for dilepton tt¯ production measured in √s= 13 TeV pp collisions with the ATLAS detector

0576674 - FZÚ 2024 RIV DE eng J - Článek v odborném periodiku
Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Federičová, Pavla - Hejbal, Jiří - Jačka, Petr - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Latoňová, Věra - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … celkem 2975 autorů
Inclusive and differential cross-sections for dilepton tt¯ production measured in √s= 13 TeV pp collisions with the ATLAS detector.
Journal of High Energy Physics. Roč. 2023, č. 7 (2023), č. článku 141. ISSN 1029-8479. E-ISSN 1029-8479
Výzkumná infrastruktura: CERN-CZ III - 90240
Institucionální podpora: RVO:68378271
Klíčová slova: ATLAS * p p: scattering
Obor OECD: Particles and field physics
Impakt faktor: 5.4, rok: 2022
Způsob publikování: Open access

Differential and double-differential distributions of kinematic variables of leptons from decays of top-quark pairs (tt‾tt) are measured using the full LHC Run 2 data sample collected with the ATLAS detector. The data were collected at a pp collision energy of ss ​ = 13 TeV and correspond to an integrated luminosity of 140 fb−1−1. The measurements use events containing an oppositely charged eμ pair and b-tagged jets. The results are compared with predictions from several Monte Carlo generators. While no prediction is found to be consistent with all distributions, a better agreement with measurements of the lepton pTT​ distributions is obtained by reweighting the tt‾tt sample so as to reproduce the top-quark pTT​ distribution from an NNLO calculation.
Trvalý link: https://hdl.handle.net/11104/0346125