Probing the CP nature of the top-Higgs Yukawa coupling in t(t)over-barH and tH events with H →b(b)over-bar decays using the ATLAS detector at the LHC
- NázevTitle
- Probing the CP nature of the top-Higgs Yukawa coupling in t(t)over-barH and tH events with H →b(b)over-bar decays using the ATLAS detector at the LHCProbing the CP nature of the top-Higgs Yukawa coupling in t(t)over-barH and tH events with H →b(b)over-bar decays using the ATLAS detector at the LHC
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- G. Aad, B. Abbott, D.C. Abbott, A. Abed Abud, B. Ali, K. Augsten, B. Bergmann, T. Billoud, M. Havránek, Z. Hubáček, S. Mondal, M. Myška, L. Novotný, V. Petousis, S. Pospíšil, K. Smolek, A. Sopczak, V. Vacek, P. Vokáč, P. Jačka, R. Polifka, O. Zaplatílek
- Klíčová slovaKeywords
- atlas, lhc
- ExperimentCollaboration
- ATLAS
- DOIDOI
- 10.1016/j.physletb.2024.138469
- Časopis / citaceJournal / citation
- Physics Letters B 849, 138469 (2024) · ISSN 0370-2693
- RokYear
- 2024
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Výzkum základních stavebních kamenů hmoty s využitím špičkových technologiíFundamental constituents of matter through frontier technologies; CERN-CZ III - Výzkumná infrastruktura pro experimenty v CERN - LM2023040 (2023–2026)CERN-CZ III - Výzkumná infrastruktura pro experimenty v CERN - LM2023040 (2023–2026)
- CitovánoCited by
- 88 (INSPIRE-HEP)
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
The CP properties of the coupling between the Higgs boson and the top quark are investigated with 139 fb−1 of proton-proton collision data recorded by the ATLAS experiment at the LHC at a centre-of-mass energy of s√=13 TeV. The CP structure of the top quark-Higgs boson Yukawa coupling is probed in events with a Higgs boson decaying into a pair of b-quarks and produced in association with either a pair of top quarks, tt¯H, or a single top quark, tH. Events containing one or two electrons or muons are used for the measurement. In an extension of the Standard Model with a CP-odd admixture to the top-Higgs Yukawa coupling, the mixing angle between CP-even and CP-odd couplings is measured to be α=11∘+52∘−73∘.
The CP properties of the coupling between the Higgs boson and the top quark are investigated with 139 fb−1 of proton-proton collision data recorded by the ATLAS experiment at the LHC at a centre-of-mass energy of s√=13 TeV. The CP structure of the top quark-Higgs boson Yukawa coupling is probed in events with a Higgs boson decaying into a pair of b-quarks and produced in association with either a pair of top quarks, tt¯H, or a single top quark, tH. Events containing one or two electrons or muons are used for the measurement. In an extension of the Standard Model with a CP-odd admixture to the top-Higgs Yukawa coupling, the mixing angle between CP-even and CP-odd couplings is measured to be α=11∘+52∘−73∘.