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Scientific article
Open access
English

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

ContributorsATLAS Collaboration
Published inThe journal of high energy physics, vol. 2023, no. 125, 125
Publication date2023
First online date2023-07-14
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 $ \sqrt{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.

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Keywords
  • Hadron-Hadron Scattering
  • P p: colliding beams
  • Resonance: production
  • Resonance: radiative decay
  • Narrow resonance
  • Resonance: mass
  • Model: production
  • P p: scattering
  • W: associated production
  • Z0: associated production
  • Photon: associated production
  • Z0: hadronic decay
  • W: hadronic decay
  • Vector boson: pair production
  • Channel cross section: branching ratio: upper limit
  • Sensitivity
  • ATLAS
  • Collimator
  • CERN LHC Coll
  • Background
  • Data analysis method
  • Experimental results
  • 13000 GeV-cms
Citation (ISO format)
ATLAS Collaboration. Search for high-mass <i>Wγ</i> and <i>Zγ</i> resonances using hadronic <i>W/Z</i> boson decays from 139 fb<sup>−1 </sup>of pp collisions at <i> \sqrt{s} </i> = 13 TeV with the ATLAS detector. In: The journal of high energy physics, 2023, vol. 2023, n° 125, p. 125. doi: 10.1007/jhep07(2023)125
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ISSN of the journal1029-8479
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