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Observation of Z production in proton-lead collisions at LHCb

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Observation of Z production in proton-lead collisions at LHCb

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dc.contributor.author	LHCb Collaboration
dc.contributor.author	Martínez Vidal, Fernando
dc.contributor.author	Oyanguren Campos, Arantza
dc.contributor.author	Ruiz Valls, Pablo
dc.contributor.author	Sánchez Mayordomo, Carlos
dc.date.accessioned	2016-04-20T10:24:13Z
dc.date.available	2016-04-20T10:24:13Z
dc.date.issued	2014
dc.identifier.citation	LHCb Collaboration Martínez Vidal, Fernando Oyanguren Campos, Arantza Ruiz Valls, Pablo Sánchez Mayordomo, Carlos 2014 Observation of Z production in proton-lead collisions at LHCb Journal Of High Energy Physics 09 9 030-1 030-18
dc.identifier.uri	http://hdl.handle.net/10550/52886
dc.description.abstract	The first observation of Z boson production in proton-lead collisions at a centre-of-mass energy per proton-nucleon pair of root(s) N N = 5TeV is presented. The data sample corresponds to an integrated luminosity of 1.6 nb(-1) collected with the LHCb detector. The Z candidates are reconstructed from pairs of oppositely charged muons with pseudorapidities between 2.0 and 4.5 and transverse momenta above 20 GeV/c. The invariant dimuon mass is restricted to the range 60-120 GeV/c. The Z production cross-section is measured to be sigma(Z ->mu+mu-) (fwd) = 13.5(-4.0)(+5.4)(stat.) +/- 1.2(syst.) nb in the direction of the proton beam and sigma(Z ->mu+mu-) (bwd) = 10.7(-5.1)(+8.4)(stat.) +/- 1.0(syst.) nb in the direction of the lead beam, where the first uncertainty is statistical and the second systematic.
dc.language.iso	eng
dc.relation.ispartof	Journal Of High Energy Physics, 2014, vol. 09, num. 9, p. 030-1-030-18
dc.subject	Física nuclear
dc.title	Observation of Z production in proton-lead collisions at LHCb
dc.type	journal article	es_ES
dc.date.updated	2016-04-20T10:24:14Z
dc.identifier.doi	10.1007/JHEP09(2014)030
dc.identifier.idgrec	101786
dc.rights.accessRights	open access	es_ES