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Studies of Zγ production in association with a high-mass dijet system in pp collisions at √s = 8 TeV with the ATLAS detector

Contributors

ATLAS Collaboration

Collaborators

Ancu, Lucian Stefan; Benoit, Mathieu; Bilbao De Mendizabal, Javier; Calace, Noemi; Chatterjee, Avishek; Clark, Allan Geoffrey; Coccaro, Andrea; Delitzsch, Chris Malena; Della Volpe, Domenico; Ferrere, Didier; Golling, Tobias; Gonzalez Sevilla, Sergio; Gramling, Johanna Léna; Iacobucci, Giuseppe; Katre, Akshay; Khoo, Teng Jian; Lanfermann, Marie Christine; Lionti, Anthony Eric; March Ruiz, Luis; Mermod, Philippe; Nackenhorst, Olaf; Nessi, Marzio; Paolozzi, Lorenzo; Ristic, Branislav; Schramm, Steven; Sfyrla, Anna; Wu, Xin

Published in

The journal of high energy physics, vol. 1707, p. 107-154

Collection

  • Open Access - SCOAP3

Publication date

2017

Abstract

The production of a Z boson and a photon in association with a high-mass dijet system is studied using 20.2 fb −1 of proton-proton collision data at a centre-of-mass energy of √s = 8 TeV recorded with the ATLAS detector in 2012 at the Large Hadron Collider. Final states with a photon and a Z boson decaying into a pair of either electrons, muons, or neutrinos are analysed. Electroweak and total pp → Zγjj cross-sections are extracted in two fiducial regions with different sensitivities to electroweak production processes. Quartic couplings of vector bosons are studied in regions of phase space with an enhanced contribution from pure electroweak production, sensitive to vector-boson scattering processes VV → Zγ . No deviations from Standard Model predictions are observed and constraints are placed on anomalous couplings parameterized by higher-dimensional operators using effective field theory.

Keywords

  • Electroweak interaction
  • Hadron-Hadron scattering (experiments)

UNIGE affiliation entities

Citation (ISO format)

ATLAS Collaboration. Studies of Zγ production in association with a high-mass dijet system in pp collisions at √s = 8 TeV with the ATLAS detector. In: The journal of high energy physics, 2017, vol. 1707, p. 107–154. doi: 10.1007/JHEP07(2017)107

Main files (1)

Article (Published version)
CC BY

Identifiers

Journal ISSN

1029-8479
476views
223downloads

Technical informations

Creation

04/08/2017 17:00:05

First validation

04/08/2017 17:00:05

Update

13/10/2025 19:52:54

Status update

15/03/2023 01:54:40

Last indexation

10/11/2026 17:24:36
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