Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10109393" target="_blank" >RIV/00216208:11320/11:10109393 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.physletb.2011.06.034" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2011.06.034</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2011.06.034" target="_blank" >10.1016/j.physletb.2011.06.034</a>

Result language
angličtina
Original language name
Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV
Original language description
A measurement of W gamma and Z gamma production in proton-proton collisions at root s = 7 TeV is presented. Results are based on a data sample recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 36 pb(-1). The electronand muon decay channels of the W and Z are used. The total cross sections are measured for photon transverse energy E(T)(gamma) } 10 GeV and spatial separation from charged leptons in the plane of pseudorapidity and azimuthal angle Delta R(l.gamma) } 0.7, and with an additional dilepton invariant mass requirement of M(ll) } 50 GeV for the Z gamma process. The following cross section times branching fraction values are found: sigma(pp -} W gamma + X) x B(W -} lv) = 56.3 +/- 5.0(stat.) +/- 5.0(syst.) +/-2.3(lumi.) pb and sigma(pp -} Z gamma + X) x B(Z -} ll) = 9.4 +/- 1.0(stat.) +/- 0.6(syst.) +/- 0.4(lumi.) pb. These measurements are in agreement with standard model predictions. The first limits on anomalous WW gamma, ZZ gamma, and Z g
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Project
<a href="/en/project/LA08015" target="_blank" >LA08015: Collaboration of the Czech Republic with CERN</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN
0370-2693
e-ISSN
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Volume of the periodical
701
Issue of the periodical within the volume
1
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
21
Pages from-to
535-555
UT code for WoS article
000293438100005
EID of the result in the Scopus database
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