Ústav technické a experimentální fyziky Institute of Experimental and Applied Physics

Search for a new scalar decaying into new spin-1 bosons in four-lepton final states with the ATLAS detector

NázevTitle
Search for a new scalar decaying into new spin-1 bosons in four-lepton final states with the ATLAS detectorSearch for a new scalar decaying into new spin-1 bosons in four-lepton final states with the ATLAS detector
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
G. Aad, B. Abbott, K. Abeling, N. J. Abicht, B. Ali, K. Augsten, B. Bergmann, T. Billoud, H. Day-Hall, Z. Hubáček, P. Jačka, S. Mondal, M. Myška, L. Novotný, V. Petousis, R. Polifka, S. Pospíšil, K. Smolek, A. Sopczak, V. Vacek, P. Vokáč, O. Zaplatílek
DOIDOI
10.1016/j.physletb.2025.139472
Časopis / citaceJournal / citation
Physics Letters B. 2025, 865 ISSN 0370-2693.
RokYear
2025
JazykLanguage
eng
WoSWoS
001498297600001
ScopusScopus
2-s2.0-105003470350
RIVRIV
RIV/68407700:21220/25:00388239!RIV26-MSM-21220___
ProjektProject
Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.; CERN-CZ III - Výzkumná infrastruktura pro experimenty v CERN - LM2023040 (2023–2026)CERN-CZ III - Výzkumná infrastruktura pro experimenty v CERN - LM2023040 (2023–2026); Výzkum základních stavebních kamenů hmoty s využitím špičkových technologiíFundamental constituents of matter through frontier technologies

AbstraktAbstract

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, mu) via an intermediate state containing two on-shell, promptly decaying new spin-1 bosons Z(d): S -> Z(d)Z(d) -> 4l, where the Z(d) 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 root 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, sigma(gg -> S) x B(S -> Z(d)Z(d) -> 4l), as a function of the mass of both particles, m(S) and m(Zd).

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, mu) via an intermediate state containing two on-shell, promptly decaying new spin-1 bosons Z(d): S -> Z(d)Z(d) -> 4l, where the Z(d) 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 root 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, sigma(gg -> S) x B(S -> Z(d)Z(d) -> 4l), as a function of the mass of both particles, m(S) and m(Zd).