0619738 - FZÚ 2026 RIV NL eng J - Článek v odborném periodiku
Aad, G. - Abbott, B. - Abeling, K. - 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 … celkem 2943 autorů
Search for a new scalar decaying into new spin-1 bosons in four-lepton final states with the ATLAS detector.
Physics Letters. B. Roč. 865, June (2025), č. článku 139472. ISSN 0370-2693. E-ISSN 1873-2445
Grant CEP: GA MŠMT(CZ) EH22_008/0004632
Výzkumná infrastruktura: CERN-CZ III - 90240
Institucionální podpora: RVO:68378271
Klíčová slova: scalar boson * Higgs boson * ATLAS
Obor OECD: Particles and field physics
Impakt faktor: 4.3, rok: 2023 ; AIS: 1.232, rok: 2023
Způsob publikování: Open access
DOI: https://doi.org/10.1016/j.physletb.2025.139472

A search is conducted for a new scalar boson S, with a mass distinct from that of the Higgs boson, decaying promptly into four leptons (ℓ=e, μ) via an intermediate state containing two on-shell, promptly decaying new spin-1 bosons Zd: S→Zd Zd→4ℓ, where the Zd boson has a mass between 15 and 300 GeV, and the S boson has a mass between either 30 and 115 GeV or 130 and 800 GeV. The search uses proton–proton collision data collected with the ATLAS detector at the Large Hadron Collider with an integrated luminosity of 139 fb−1 at a centre-of-mass energy of √s=13 TeV. No significant excess above the Standard Model background expectation is observed. Upper limits at 95% confidence level are set on the production cross-section times branching ratio, σ(gg→S)×B(S→ZdZd→4ℓ), as a function of the mass of both particles, mS and mZd.
Trvalý link: https://hdl.handle.net/11104/0366384
Vědecká data: Hepdata