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

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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 electron and 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 gamma gamma trilinear gauge couplings at root s = 7 TeV are set. 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 electron and 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 gamma gamma trilinear gauge couplings at root s = 7 TeV are set. (en)
Title	Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV (en)
skos:prefLabel	Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV (en)
skos:notation	RIV/00216208:11320/11:10109393!RIV12-MSM-11320___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(LA08015)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Finger, Michael Finger, Miroslav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	211156
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/11:10109393
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	TeV; s=7; root; collisions; production; gamma; Measurement (en)
http://linked.open.../riv/klicoveSlovo	production gamma Measurement TeV collisions root s=7
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[9D326066427E]
http://linked.open...i/riv/nazevZdroje	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
http://linked.open...in/vavai/riv/obor	BF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2175 (xsd:int)
http://linked.open...vavai/riv/projekt	Collaboration of the Czech Republic with CERN
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	701
http://linked.open...iv/tvurceVysledku	CMS, Collaboration Chatrchyan, S. Finger, Michael Finger, Miroslav Khachatryan, V.
http://linked.open...ain/vavai/riv/wos	000293438100005
issn	0370-2693
number of pages	21 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.physletb.2011.06.034
http://localhost/t...ganizacniJednotka	11320

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