0619084 - FZÚ 2026 RIV DE eng J - Článek v odborném periodiku
Aad, G. - Aakvaag, E. - Abbott, B. - Chudoba, Jiří - Federičová, Pavla - Hejbal, Jiří - Jačka, Petr - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Latoňová, Věra - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Nechanský, Filip - Němeček, Stanislav - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … celkem 2887 autorů
Measurement of the associated production of a top-antitop-quark pair and a Higgs boson decaying into a bb^- pair in pp collisions at √s=13 TeV using the ATLAS detector at the LHC.
European Physical Journal C. Roč. 85, Feb (2025), č. článku 210. ISSN 1434-6044. E-ISSN 1434-6052
Grant CEP: GA MŠMT(CZ) EH22_008/0004632
Výzkumná infrastruktura: CERN-CZ III - 90240
Institucionální podpora: RVO:68378271
Klíčová slova: ATLAS * CERN * Higgs boson * proton–proton collision
Obor OECD: Particles and field physics
Impakt faktor: 4.2, rok: 2023 ; AIS: 1.119, rok: 2023
Způsob publikování: Open access
DOI: https://doi.org/10.1140/epjc/s10052-025-13740-x

This paper reports the measurement of Higgs boson production in association with a ttˉ pair in the H→bbˉ decay channel. The analysis uses 140 fb−1 of 13 TeV proton–proton collision data collected with the ATLAS detector at the Large Hadron Collider. The final states with one or two electrons or muons are employed. An excess of events over the expected background is found with an observed (expected) significance of 4.6 (5.4) standard deviations. The ttˉH cross-section is σttˉH=411 −92+101 fb = 411±54(stat.) −75+85(syst.) fb for a Higgs boson mass of 125.09 GeV, consistent with the prediction of the Standard Model of 507−50+35 fb. The cross-section is also measured differentially in bins of the Higgs boson transverse momentum within the simplified template cross-section framework.
Trvalý link: https://hdl.handle.net/11104/0366172