Search for high-mass <i>W</i>γ and <i>Z</i>γ resonances using hadronic <i>W</i>/<i>Z</i> boson decays from 139 fb<SUP>-1</SUP> of <i>pp</i> collisions at √<i>s</i>=13 TeV with the ATLAS detector



Aad, G, Abbott, B, Abbott, DC, Abud, A Abed, Abeling, K, Abhayasinghe, DK, Abidi, SH, Aboulhorma, A, Abramowicz, H, Abreu, H
et al (show 2845 more authors) (2023) Search for high-mass <i>W</i>γ and <i>Z</i>γ resonances using hadronic <i>W</i>/<i>Z</i> boson decays from 139 fb<SUP>-1</SUP> of <i>pp</i> collisions at √<i>s</i>=13 TeV with the ATLAS detector. JOURNAL OF HIGH ENERGY PHYSICS, 2023 (7). 125-.

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Abstract

<jats:title>A<jats:sc>bstract</jats:sc> </jats:title><jats:p>A search for high-mass charged and neutral bosons decaying to <jats:italic>Wγ</jats:italic> and <jats:italic>Zγ</jats:italic> final states is presented in this paper. The analysis uses a data sample of <jats:inline-formula><jats:alternatives><jats:tex-math>$$ \sqrt{s} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math></jats:alternatives></jats:inline-formula> = 13 TeV proton-proton collisions with an integrated luminosity of 139 fb<jats:sup><jats:italic>−</jats:italic>1</jats:sup> 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 <jats:italic>W</jats:italic> and <jats:italic>Z</jats:italic> bosons because of their large branching fractions. The decay products of the high-momentum <jats:italic>W/Z</jats:italic> 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 <jats:italic>Wγ</jats:italic> and <jats:italic>Zγ</jats:italic> are derived for various boson production models.</jats:p>

Item Type: Article
Uncontrolled Keywords: Hadron-Hadron Scattering
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 09 Aug 2023 10:23
Last Modified: 18 Mar 2024 03:58
DOI: 10.1007/JHEP07(2023)125
Open Access URL: https://link.springer.com/article/10.1007/JHEP07(2...
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3172099