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Measurement of the W‐>lnu and Z/gamma*‐>ll production cross sections in protonproton collisions at √s = 7 TeV with the ATLAS detector

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Measurement of the W‐>lnu and Z/gamma*‐>ll production cross sections in protonproton collisions at √s = 7 TeV with the ATLAS detector

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dc.contributor.author	ATLAS Collaboration
dc.contributor.author	González de la Hoz, Santiago
dc.contributor.author	Castillo Giménez, María Victoria
dc.contributor.author	Higón Rodríguez, Emilio
dc.contributor.author	Ferrer Soria, Antonio
dc.contributor.author	Hernández Jiménez, Yesenia
dc.contributor.author	García García, Carmen
dc.contributor.author	Martí García, Salvador
dc.contributor.author	Fuster Verdú, Juan A.
dc.contributor.author	Valls Ferrer, Juan Antonio
dc.contributor.author	Salt Cairols, José
dc.contributor.author	Lacasta Llácer, Carlos
dc.contributor.author	Villaplana Pérez, Miguel
dc.date.accessioned	2014-05-29T11:16:11Z
dc.date.available	2014-05-29T11:16:11Z
dc.date.issued	2010
dc.identifier.citation	ATLAS Collaboration González de la Hoz, Santiago Castillo Giménez, María Victoria Higón Rodríguez, Emilio Ferrer Soria, Antonio Hernández Jiménez, Yesenia García García, Carmen Martí García, Salvador Fuster Verdú, Juan A. Valls Ferrer, Juan Antonio Salt Cairols, José Lacasta Llácer, Carlos Villaplana Pérez, Miguel 2010 Measurement of the W‐>lnu and Z/gamma*‐>ll production cross sections in protonproton collisions at √s = 7 TeV with the ATLAS detector Journal of High Energy Physics 12 60-1 60-64
dc.identifier.uri	http://hdl.handle.net/10550/35693
dc.description.abstract	First measurements of the W -> lnu and Z/gamma* -> ll (l = e, mu) production cross sections in proton-proton collisions at sqrt(s) = 7 TeV are presented using data recorded by the ATLAS experiment at the LHC. The results are based on 2250 W -> lnu and 179 Z/gamma* -> ll candidate events selected from a data set corresponding to an integrated luminosity of approximately 320 nb-1. The measured total W and Z/gamma-boson production cross sections times the respective leptonic branching ratios for the combined electron and muon channels are $\stotW$ BR(W -> lnu) = 9.96 +- 0.23(stat) +- 0.50(syst) +- 1.10(lumi) nb and $\stotZg$ * BR(Z/gamma* -> ll) = 0.82 +- 0.06(stat) +- 0.05(syst) +- 0.09(lumi) nb (within the invariant mass window 66 < m_ll < 116 GeV). The W/Z cross-section ratio is measured to be 11.7 +- 0.9(stat) +- 0.4(syst). In addition, measurements of the W+ and W- production cross sections and of the lepton charge asymmetry are reported. Theoretical predictions based on NNLO QCD calculations are found to agree with the measurements.
dc.relation.ispartof	Journal of High Energy Physics, 2010, vol. 12, p. 60-1-60-64
dc.subject	Detectors de radiació
dc.subject	Partícules (Física nuclear)
dc.subject	Acceleradors de partícules
dc.title	Measurement of the W‐>lnu and Z/gamma*‐>ll production cross sections in protonproton collisions at √s = 7 TeV with the ATLAS detector
dc.type	journal article	es_ES
dc.date.updated	2014-05-29T11:16:11Z
dc.identifier.doi	10.1007/JHEP12(2010)060
dc.identifier.idgrec	062669
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1007/JHEP12(2010)060