info:eu-repo/semantics/article
Measurements of Wgamma and Zgamma production in pp collisions at sqrt{s}= 7 TeV with the ATLAS detector at the LHC
Date
2013-02Registration in:
Aad, G.; Abajyan, T.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; et al.; Measurements of Wgamma and Zgamma production in pp collisions at sqrt{s}= 7 TeV with the ATLAS detector at the LHC; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 87; 2-2013; 3-32
1550-7998
CONICET Digital
CONICET
Author
Aad, G.
Abajyan, T.
Abbott, B.
Abdallah, J.
Abdel Khalek, S.
González Silva, María Laura
Otero y Garzon, Gustavo Javier
Piegaia, Ricardo Nestor
Romeo, Gaston Leonardo
Alonso, Francisco
Anduaga, Xabier Sebastian
Dova, Maria Teresa
Monticelli, Fernando Gabriel
Tripiana, Martin Fernando
Zhu, Y.
Zhuang, X.
Zhuravlov, V.
Zieminska, D.
Zimine, N. I.
Zimmermann, R.
Zimmermann, C.
Zimmermann, S.
Ziolkowski, M.
Zitoun, R.
Živković, L.
Zmouchko, V. V.
Zobernig, G.
Zoccoli, A.
Nedden, M. zur
Zutshi, V.
Zwalinski, L.
The ATLAS Collaboration
Abstract
The integrated and differential fiducial cross sections for the production of a W or Z boson in association with a high-energy photon are measured using pp collisions at sqrt{s} = 7 TeV. The analyses use a data sample with an integrated luminosity of 4.6 fb^{-1} collected by the ATLAS detector during the 2011 LHC data-taking period. Events are selected using leptonic decays of the W and Z bosons (W(e nu,mu nu) and Z(e+ e-, mu+ mu-, nu nubar)) with the requirement of an associated isolated photon. The data are used to test the electroweak sector of the Standard Model and search for evidence for new phenomena. The measurements are used to probe the anomalous WWgamma, ZZgamma and Zgammagamma triple-gauge-boson couplings and to search for the production of vector resonances decaying to Zgamma and Wgamma. No deviations from Standard Model predictions are observed and limits are placed on anomalous triple-gauge-boson couplings and on the production of new vector meson resonances.