TY - JOUR
T1 - Study of WWγ and WZγ production in pp collisions at √s=8TeV and search for anomalous quartic gauge couplings with the ATLAS experiment
AU - Aaboud, M
AU - Aad, G
AU - Abbott, B.
AU - Abdinov, O
AU - Abeloos, B
AU - Abidi, S. H.
AU - Åkesson, Torsten
AU - Bocchetta, Simona
AU - Doglioni, Caterina
AU - Hedberg, Vincent
AU - Jarlskog, Göran
AU - Kalderon, Charles
AU - Kellermann, Edgar
AU - Lytken, Else
AU - Mankinen, Katja
AU - Mjörnmark, Ulf
AU - Pöttgen, Ruth
AU - Poulsen, Trine
AU - Smirnova, Oxana
AU - Viazlo, Oleksandr
AU - ATLAS Collaboration
N1 - Export Date: 6 October 2017
PY - 2017
Y1 - 2017
N2 - This paper presents a study of WWγ and WZγ triboson production using events from proton–proton collisions at a centre-of-mass energy of s=8TeV recorded with the ATLAS detector at the LHC and corresponding to an integrated luminosity of 20.2 fb- 1. The WWγ production cross-section is determined using a final state containing an electron, a muon, a photon, and neutrinos (e). Upper limits on the production cross-section of the e final state and the WWγ and WZγ final states containing an electron or a muon, two jets, a photon, and a neutrino (eνjjγ or μνjjγ) are also derived. The results are compared to the cross-sections predicted by the Standard Model at next-to-leading order in the strong-coupling constant. In addition, upper limits on the production cross-sections are derived in a fiducial region optimised for a search for new physics beyond the Standard Model. The results are interpreted in the context of anomalous quartic gauge couplings using an effective field theory. Confidence intervals at 95% confidence level are derived for the 14 coupling coefficients to which WWγ and WZγ production are sensitive. © 2017, CERN for the benefit of the ATLAS collaboration.
AB - This paper presents a study of WWγ and WZγ triboson production using events from proton–proton collisions at a centre-of-mass energy of s=8TeV recorded with the ATLAS detector at the LHC and corresponding to an integrated luminosity of 20.2 fb- 1. The WWγ production cross-section is determined using a final state containing an electron, a muon, a photon, and neutrinos (e). Upper limits on the production cross-section of the e final state and the WWγ and WZγ final states containing an electron or a muon, two jets, a photon, and a neutrino (eνjjγ or μνjjγ) are also derived. The results are compared to the cross-sections predicted by the Standard Model at next-to-leading order in the strong-coupling constant. In addition, upper limits on the production cross-sections are derived in a fiducial region optimised for a search for new physics beyond the Standard Model. The results are interpreted in the context of anomalous quartic gauge couplings using an effective field theory. Confidence intervals at 95% confidence level are derived for the 14 coupling coefficients to which WWγ and WZγ production are sensitive. © 2017, CERN for the benefit of the ATLAS collaboration.
U2 - 10.1140/epjc/s10052-017-5180-3
DO - 10.1140/epjc/s10052-017-5180-3
M3 - Article
SN - 1434-6044
VL - 77
JO - European Physical Journal C
JF - European Physical Journal C
IS - 9
M1 - 646
ER -