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Scientific article
Open access
English

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

ContributorsATLAS Collaboration
Published inJournal of High Energy Physics, vol. 1812, 010
Collection
  • Open Access - SCOAP3
Publication date2018
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 T ) of the dineutrino system in conjunction with a single isolated photon with large transverse energy ( E T ). The rate of Zγ production is measured as a function of photon E T , dineutrino system p T and jet multiplicity. Evidence of anomalous triple gauge-boson couplings is sought in Zγ production with photon E T 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.

Keywords
  • Hadron-Hadron scattering (experiments)
Citation (ISO format)
ATLAS Collaboration. Measurement of the Z γ → ν ν ¯ γ production cross section in pp collisions at √s = 13 TeV with the ATLAS detector and limits on anomalous triple gauge-boson couplings. In: Journal of High Energy Physics, 2018, vol. 1812, p. 010. doi: 10.1007/JHEP12(2018)010
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Article (Published version)
Identifiers
ISSN of the journal1029-8479
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