Search for doubly charged Higgs boson production in multi-lepton final states using 139 fb.sup.-1./sup. of proton–proton collisions at √s= 13 TeV with the ATLAS detector

0577720 - FZÚ 2024 RIV DE eng J - Článek v odborném periodiku
Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Hejbal, Jiří - Jačka, Petr - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Latoňová, Věra - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … celkem 2902 autorů
Search for doubly charged Higgs boson production in multi-lepton final states using 139 fb^-1 of proton–proton collisions at √s= 13 TeV with the ATLAS detector.
European Physical Journal C. Roč. 83, č. 7 (2023), č. článku 605. ISSN 1434-6044. E-ISSN 1434-6052
Výzkumná infrastruktura: CERN-CZ II - 90104
Institucionální podpora: RVO:68378271
Klíčová slova: ATLAS * neutrino: mass * Higgs particle: pair production * left-right * muon
Obor OECD: Particles and field physics
Impakt faktor: 4.4, rok: 2022
Způsob publikování: Open access

A search for pair production of doubly charged Higgs bosons (H±±H±±), each decaying into a pair of prompt, isolated, and highly energetic leptons with the same electric charge, is presented. The search uses a proton–proton collision data sample at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 139 fb−1−1 recorded by the ATLAS detector during Run 2 of the Large Hadron Collider (LHC). This analysis focuses on same-charge leptonic decays, H±± ⁣→ℓ±ℓ′±H±±→ℓ±ℓ′± where ℓ,ℓ′ ⁣= ⁣e,μ,τℓ,ℓ′=e,μ,τ, in two-, three-, and four-lepton channels, but only considers final states which include electrons or muons. No evidence of a signal is observed. Corresponding upper limits on the production cross-section of a doubly charged Higgs boson are derived, as a function of its mass m(H±±)m(H±±), at 95% confidence level.
Trvalý link: https://hdl.handle.net/11104/0346839