@misc{10481/83189,
year = {2023},
month = {6},
url = {https://hdl.handle.net/10481/83189},
abstract = {The electroweak production of Z(ν ¯ν)γ in association with two jets is studied in
a regime with a photon of high transverse momentum above 150 GeV using proton–proton
collisions at a centre-of-mass energy of 13 TeV at the Large Hadron Collider. The analysis
uses a data sample with an integrated luminosity of 139 fb−1 collected by the ATLAS
detector during the 2015–2018 LHC data-taking period. This process is an important probe
of the electroweak symmetry breaking mechanism in the Standard Model and is sensitive
to quartic gauge boson couplings via vector-boson scattering. The fiducial Z(ν ¯ν)γjj cross
section for electroweak production is measured to be 0.77+0.34
−0.30 fb and is consistent with the
Standard Model prediction. Evidence of electroweak Z(ν ¯ν)γjj production is found with
an observed significance of 3.2σ for the background-only hypothesis, compared with an
expected significance of 3.7σ. The combination of this result with the previously published
ATLAS observation of electroweak Z(ν ¯ν)γjj production yields an observed (expected)
signal significance of 6.3σ (6.6σ). Limits on anomalous quartic gauge boson couplings are
obtained in the framework of effective field theory with dimension-8 operators.},
organization = {CERN},
organization = {MICINN},
organization = {COST},
organization = {ERC},
organization = {ERDF},
organization = {Horizon 2020},
organization = {Marie Skłodowska-Curie Actions},
organization = {European Union},
organization = {La Caixa Banking Foundation},
organization = {Generalitat de Catalunya CERCA},
organization = {PROMETEO},
organization = {Generalitat Valenciana GenT},
organization = {PIC},
publisher = {Springer Nature},
keywords = {Electroweak Interaction},
keywords = {Hadron-Hadron Scattering},
title = {Measurement of electroweak Z(ν ¯ν)γjj production and limits on anomalous quartic gauge couplings in pp collisions at √s = 13 TeV with the ATLAS detector},
doi = {10.1007/JHEP06(2023)082},
author = {Atlas Collaboration and Aad, G. and Aguilar Saavedra, Juan Antonio and Rodríguez Chala, Mikael},
}