Measurement of the Zγ→ννγ production cross section in pp collisions at √s=13 TeV with the ATLAS detector and limits on anomalous triple gauge-boson couplings



Aaboud, M, Aad, G, Abbott, B, Abdinov, O, Abeloos, B, Abhayasinghe, DK, Abidi, SH, AbouZeid, OS, Abraham, NL, Abramowicz, H
et al (show 2923 more authors) (2018) Measurement of the Zγ→ννγ production cross section in pp collisions at √s=13 TeV with the ATLAS detector and limits on anomalous triple gauge-boson couplings JOURNAL OF HIGH ENERGY PHYSICS, 2018 (12). 010-. ISSN 1029-8479, 1029-8479

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Abstract

The production of Z bosons in association with a high-energy photon (Zγ production) is studied in the neutrino decay channel of the Z boson using pp collisions at s=13 TeV. The analysis uses a data sample with an integrated luminosity of 36.1fb−1 collected by the ATLAS detector at the LHC in 2015 and 2016. Candidate Zγ events with invisible decays of the Z boson are selected by requiring significant transverse momentum (p<inf>T</inf>) of the dineutrino system in conjunction with a single isolated photon with large transverse energy (E<inf>T</inf>). The rate of Zγ production is measured as a function of photon E<inf>T</inf>, dineutrino system p<inf>T</inf> and jet multiplicity. Evidence of anomalous triple gauge-boson couplings is sought in Zγ production with photon E<inf>T</inf> greater than 600 GeV. No excess is observed relative to the Standard Model expectation, and upper limits are set on the strength of ZZγ and Zγγ couplings.[Figure not available: see fulltext.].

Item Type: Article
Additional Information: 42 pages in total, author list starting page 26, 7 figures, 9 tables, published in JHEP. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-18/
Uncontrolled Keywords: Hadron-Hadron scattering (experiments)
Depositing User: Symplectic Admin
Date Deposited: 19 Feb 2019 15:25
Last Modified: 16 Jun 2026 07:16
DOI: 10.1007/JHEP12(2018)010
Open Access URL: https://link.springer.com/article/10.1007/JHEP12(2...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3032512
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