Measurement of W gamma and Z gamma production in proton-proton collisions at root s=7 TeV with the ATLAS detector

UNSPECIFIED (2011) Measurement of W gamma and Z gamma production in proton-proton collisions at root s=7 TeV with the ATLAS detector. Journal of High Energy Physics, 2011 (9): 072. ISSN 1029-8479

[thumbnail of art%3A10.1007%2FJHEP09%282011%29072]
Preview
PDF (art%3A10.1007%2FJHEP09%282011%29072)
art_3A10.1007_2FJHEP09_282011_29072.pdf - Published Version
Available under License Creative Commons Attribution.

Download (694kB)

Abstract

We present studies of W and Z bosons with associated high energy photons produced in pp collisions at root s = 7 TeV. The analysis uses 35 pb(-1) of data collected by the ATLAS experiment in 2010. The event selection requires W and Z bosons decaying into high pT leptons (electrons or muons) and a photon with E-T > 15 GeV separated from the lepton(s) by a distance Delta R(l, gamma) > 0.7 in eta-phi space. A total of 95 (97) pp -> e(+/-)nu gamma + X (pp -> mu(+/-)nu gamma + X) and 25 (23) pp -> e(+)e(-)gamma + X (pp -> mu(+)mu(-)gamma + X) event candidates are selected. The kinematic distributions of the leptons and photons and the production cross sections are measured. The data are found to agree with Standard Model predictions that include next-to-leading-order O(alpha alpha(s)) contributions.

Item Type:
Journal Article
Journal or Publication Title:
Journal of High Energy Physics
Additional Information:
This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
?? hadron-hadron scatteringnuclear and high energy physicsqc physics ??
ID Code:
68134
Deposited By:
Deposited On:
18 Dec 2013 16:36
Refereed?:
Yes
Published?:
Published
Last Modified:
14 Feb 2024 00:51