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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
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Becker, K., Facini, G., Harrison, P. F., Jones, E., Martin, T. A., Morgenstern, S., Murray, W. J., Roberts, B. A., Spangenberg, Martin and Vladimirov, V. E. (2023) 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. Journal of High Energy Physics, 2023 . 125. doi:10.1007/JHEP07(2023)125 ISSN 1029-8479.
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Official URL: https://doi.org/10.1007/JHEP07(2023)125
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.
Item Type: | Journal Article | ||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
Journal or Publication Title: | Journal of High Energy Physics | ||||||
Publisher: | Springer | ||||||
ISSN: | 1029-8479 | ||||||
Official Date: | 14 July 2023 | ||||||
Dates: |
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Volume: | 2023 | ||||||
Article Number: | 125 | ||||||
DOI: | 10.1007/JHEP07(2023)125 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Date of first compliant deposit: | 6 September 2023 | ||||||
Date of first compliant Open Access: | 6 September 2023 |
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