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Measurement of the cross-section for b-jets produced in association with a Z boson at √s=7 TeV with the ATLAS detector

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Measurement of the cross-section for b-jets produced in association with a Z boson at √s=7 TeV with the ATLAS detector

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dc.contributor.author	ATLAS Collaboration
dc.contributor.author	Mitsou, Vasiliki
dc.contributor.author	Ferrer Soria, Antonio
dc.contributor.author	Fiorini, Luca
dc.contributor.author	Ros Martínez, Eduardo
dc.contributor.author	Fuster Verdú, Juan A.
dc.contributor.author	García García, Carmen
dc.contributor.author	Cabrera Urbán, Susana
dc.contributor.author	Martí García, Salvador
dc.contributor.author	Salt Cairols, José
dc.contributor.author	Lacasta Llácer, Carlos
dc.contributor.author	Valls Ferrer, Juan Antonio
dc.contributor.author	Castillo Giménez, María Victoria
dc.contributor.author	Higón Rodríguez, Emilio
dc.contributor.author	González de la Hoz, Santiago
dc.contributor.author	Kaci, Mohammed
dc.contributor.author	Hernández Jiménez, Yesenia
dc.contributor.author	Villaplana Pérez, Miguel
dc.date.accessioned	2014-05-27T10:58:53Z
dc.date.available	2014-05-27T10:58:53Z
dc.date.issued	2012
dc.identifier.citation	ATLAS Collaboration Mitsou, Vasiliki Ferrer Soria, Antonio Fiorini, Luca Ros Martínez, Eduardo Fuster Verdú, Juan A. García García, Carmen Cabrera Urbán, Susana Martí García, Salvador Salt Cairols, José Lacasta Llácer, Carlos Valls Ferrer, Juan Antonio Castillo Giménez, María Victoria Higón Rodríguez, Emilio González de la Hoz, Santiago Kaci, Mohammed Hernández Jiménez, Yesenia Villaplana Pérez, Miguel 2012 Measurement of the cross-section for b-jets produced in association with a Z boson at √s=7 TeV with the ATLAS detector Physics Letters B 706 4-5 295 313
dc.identifier.uri	http://hdl.handle.net/10550/35474
dc.description.abstract	A measurement is presented of the inclusive cross-section for b-jet production in association with a Z boson in pp collisions at a centre-of-mass energy of root s = 7 TeV. The analysis uses the data sample collected by the ATLAS experiment in 2010, corresponding to an integrated luminosity of approximately 36 pb(-1). The event selection requires a Z boson decaying into high P-T electrons or muons, and at least one b-jet, identified by its displaced vertex, with transverse momentum p(T) > 25 GeV and rapidity vertical bar y vertical bar < 2.1. After subtraction of background processes, the yield is extracted from the vertex mass distribution of the candidate b-jets. The ratio of this cross-section to the inclusive Z cross-section (the average number of b-jets per Z event) is also measured. Both results are found to be in good agreement with perturbative QCD predictions at next-to-leading order.
dc.relation.ispartof	Physics Letters B, 2012, vol. 706, num. 4-5, p. 295-313
dc.subject	Física nuclear
dc.title	Measurement of the cross-section for b-jets produced in association with a Z boson at √s=7 TeV with the ATLAS detector
dc.type	journal article	es_ES
dc.date.updated	2014-05-27T10:58:53Z
dc.identifier.doi	10.1016/j.physletb.2011.11.059
dc.identifier.idgrec	070112
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1016/j.physletb.2011.11.059