Mostra el registre parcial de l'element

dc.contributorUniversitat Ramon Llull. La Salle
dc.contributorCERN
dc.contributor.authorCalvo Gómez, Míriam
dc.contributor.authorCamboni, Alessandro
dc.contributor.authorVilasís Cardona, Xavier
dc.contributor.authorLHCb Collaboration - CERN
dc.date.accessioned2020-11-20T15:35:00Z
dc.date.accessioned2023-10-02T06:26:00Z
dc.date.available2020-11-20T15:35:00Z
dc.date.available2023-10-02T06:26:00Z
dc.date.created2013
dc.date.issued2013-02-19
dc.identifier.urihttp://hdl.handle.net/20.500.14342/3111
dc.description.abstractA measurement of the cross-section for pp → Z → e+e− is presented using data at s√=7 TeV corresponding to an integrated luminosity of 0.94 fb−1. The process is measured within the kinematic acceptance p T > 20 GeV/c and 2 < η < 4.5 for the daughter electrons and dielectron invariant mass in the range 60–120 GeV/c 2. The cross-section is determined to be $\sigma \left( {\mathrm{pp}\to \mathrm{Z}\to {{\mathrm{e}}^{+}}{{\mathrm{e}}^{-}}} \right)=76.0\pm 0.8\pm 2.0\pm 2.6\;\mathrm{pb}$ where the first uncertainty is statistical, the second is systematic and the third is the uncertainty in the luminosity. The measurement is performed as a function of Z rapidity and as a function of an angular variable which is closely related to the Z transverse momentum. The results are compared with previous LHCb measurements and with theoretical predictions from QCD.eng
dc.format.extent20 p.cat
dc.language.isoengcat
dc.publisherSpringercat
dc.relation.ispartofJournal of High Energy Physics, 2013, Vol. 2013, No.2 (Febrer)cat
dc.rights© CERN
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceRECERCAT (Dipòsit de la Recerca de Catalunya)
dc.subject.otherGran col·lisionador d'hadrons (França i Suïssa)cat
dc.subject.otherPartícules (Física nuclear)cat
dc.subject.otherElectronscat
dc.titleMeasurement of the cross-section for Z → e+e- production in pp collisions at s√=7 TeVcat
dc.typeinfo:eu-repo/semantics/articlecat
dc.typeinfo:eu-repo/semantics/publishedVersioncat
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.embargo.termscapcat
dc.subject.udc539
dc.identifier.doihttps://doi.org/10.1007/JHEP02(2013)106cat


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Mostra el registre parcial de l'element

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