0598224 - FZÚ 2025 RIV NL eng J - Journal Article
Aad, G. - Aakvaag, E. - Abbott, B. - 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 … Total 2868 authors
Searches for exclusive Higgs boson decays into D^⁎γ and Z boson decays into D⁰γ and K_s ⁰γ in pp collisions at √s=13TeV with the ATLAS detector.
Physics Letters. B. Roč. 855, Aug (2024), č. článku 138762. ISSN 0370-2693. E-ISSN 1873-2445
R&D Projects: GA MŠMT(CZ) EH22_008/0004632
Research Infrastructure: CERN-CZ III - 90240
Institutional support: RVO:68378271
Keywords : ATLAS * Higgs particle: branching ratio: upper limit * Z0: branching ratio: upper limit
OECD category: Particles and field physics
Impact factor: 4.3, year: 2023 ; AIS: 1.231, rok: 2023
Method of publishing: Open access
DOI: https://doi.org/10.1016/j.physletb.2024.138762

Searches for exclusive decays of the Higgs boson into D⁎γ and of the Z boson into D0γ and Ks0γ can probe flavour-violating Higgs boson and Z boson couplings to light quarks. Searches for these decays are performed with a pp collision data sample corresponding to an integrated luminosity of 136.3 fb−1 collected at s=13TeV between 2016–2018 with the ATLAS detector at the CERN Large Hadron Collider. In the D⁎γ and D0γ channels, the observed (expected) 95% confidence-level upper limits on the respective branching fractions are B(H→D⁎γ)<1.0(1.2)×10−3, B(Z→D0γ)<4.0(3.4)×10−6, while the corresponding results in the Ks0γ channel are B(Z→Ks0γ)<3.1(3.0)×10−6.
Permanent Link: https://hdl.handle.net/11104/0355952