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Search for high-mass Wγ and Zγ resonances using hadronic W/Z boson decays from 139 fb −1 of pp collisions at √s = 13 TeV with the ATLAS detector

Aad G.
•
Abbott B.
•
Abbott D. C.
altro
Zwalinski L.
2023
  • journal article

Periodico
JOURNAL OF HIGH ENERGY PHYSICS
Abstract
A search for high-mass charged and neutral bosons decaying to Wγ and Zγ final states is presented in this paper. The analysis uses a data sample of s = 13 TeV proton-proton collisions with an integrated luminosity of 139 fb −1 collected by the ATLAS detector during LHC Run 2 operation. The sensitivity of the search is determined using models of the production and decay of spin-1 charged bosons and spin-0/2 neutral bosons. The range of resonance masses explored extends from 1.0 TeV to 6.8 TeV. At these high resonance masses, it is beneficial to target the hadronic decays of the W and Z bosons because of their large branching fractions. The decay products of the high-momentum W/Z bosons are strongly collimated and boosted-boson tagging techniques are employed to improve the sensitivity. No evidence of a signal above the Standard Model backgrounds is observed, and upper limits on the production cross-sections of these bosons times their branching fractions to Wγ and Zγ are derived for various boson production models. [Figure not available: see fulltext.].
DOI
10.1007/JHEP07(2023)125
Archivio
https://hdl.handle.net/11390/1254409
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85165287450
https://ricerca.unityfvg.it/handle/11390/1254409
Diritti
open access
Soggetti
  • Hadron-Hadron Scatter...

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