Constraints on Higgs boson properties using WW.sup.∗./sup.(→ eνμν) j j production in 36.1 fb.sup.-1./sup. of √s=13 TeV pp collisions with the ATLAS detector

0562695 - FZÚ 2023 RIV DE eng J - Článek v odborném periodiku
Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - 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 2830 autorů
Constraints on Higgs boson properties using WW^∗(→ eνμν) j j production in 36.1 fb^-1 of √s=13 TeV pp collisions with the ATLAS detector.
European Physical Journal C. Roč. 82, č. 7 (2022), č. článku 622. ISSN 1434-6044. E-ISSN 1434-6052
Výzkumná infrastruktura: CERN-CZ II - 90104; e-INFRA CZ - 90140
Institucionální podpora: RVO:68378271
Klíčová slova: Higgs particle: decay modes * W: pair production * W: leptonic decay
Obor OECD: Particles and field physics
Impakt faktor: 4.4, rok: 2022
Způsob publikování: Open access

This article presents the results of two studies of Higgs boson properties using the WW∗(→eνμν)jjWW∗(→eνμν)jj final state, based on a dataset corresponding to 36.1fb−136.1fb−1 of s=13s ​=13 TeV proton–proton collisions recorded by the ATLAS experiment at the Large Hadron Collider. The first study targets Higgs boson production via gluon–gluon fusion and constrains the CP properties of the effective Higgs–gluon interaction. Using angular distributions and the overall rate, a value of tan⁡(α)=0.0±0.4(stat.)±0.3(syst.)tan(α)=0.0±0.4(stat.)±0.3(syst.) is obtained for the tangent of the mixing angle for CP-even and CP-odd contributions. The second study exploits the vector-boson fusion production mechanism to probe the Higgs boson couplings to longitudinally and transversely polarised W and Z bosons in both the production and the decay of the Higgs boson, these couplings have not been directly constrained previously.
Trvalý link: https://hdl.handle.net/11104/0337243