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Measurement of the ZZ production cross section and limits on anomalous neutral triple gauge couplings in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector

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Measurement of the ZZ production cross section and limits on anomalous neutral triple gauge couplings in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector

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dc.contributor.author	ATLAS Collaboration
dc.contributor.author	Mitsou, Vasiliki
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	Ferrer Soria, Antonio
dc.contributor.author	González de la Hoz, Santiago
dc.contributor.author	Kaci, Mohammed
dc.contributor.author	Hernández Jiménez, Yesenia
dc.contributor.author	Lacuesta Miquel, Vicente
dc.contributor.author	Villaplana Pérez, Miguel
dc.date.accessioned	2014-05-27T11:06:42Z
dc.date.available	2014-05-27T11:06:42Z
dc.date.issued	2012
dc.identifier.citation	ATLAS Collaboration Mitsou, Vasiliki 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 Ferrer Soria, Antonio González de la Hoz, Santiago Kaci, Mohammed Hernández Jiménez, Yesenia Lacuesta Miquel, Vicente Villaplana Pérez, Miguel 2012 Measurement of the ZZ production cross section and limits on anomalous neutral triple gauge couplings in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector Physical Review Letters 108 04-041804 1 18
dc.identifier.uri	http://hdl.handle.net/10550/35476
dc.description.abstract	A measurement of the ZZ production cross section in proton-proton collisions at root s = 7 TeV using data corresponding to an integrated luminosity of 1.02 fb(-1) recorded by the ATLAS experiment at the LHC is presented. Twelve events containing two Z boson candidates decaying to electrons and/or muons are observed, with an expected background of 0.3 +/- 0.3(stat)(-0.3)(+0.4)(syst) events. The cross section measured in a phase-space region with good detector acceptance and for dilepton masses within the range 66 to 116 GeV is sigma(fid)(ZZ -> l+l-l+l-) = 19.4(-5.2)(+6.3)(stat)(-0.7)(+0.9)(syst) +/- 0.7(lumi) fb. The resulting total cross section for on-shell ZZ production, sigma(tot)(ZZ) = 8.5(-2.3)(+2.7)(stat)(-0.3)(+0.4)(syst) +/- 0.3(lumi) pb, is consistent with the standard model expectation of 6.5(-0.2)(+0.3) pb calculated at the next-to-leading order in QCD. Limits on anomalous neutral triple gauge boson couplings are derived.
dc.relation.ispartof	Physical Review Letters, 2012, vol. 108, num. 04-041804, p. 1-18
dc.subject	Física nuclear
dc.title	Measurement of the ZZ production cross section and limits on anomalous neutral triple gauge couplings in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
dc.type	journal article	es_ES
dc.date.updated	2014-05-27T11:06:42Z
dc.identifier.doi	10.1103/PhysRevLett.108.041804
dc.identifier.idgrec	070697
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1103/PhysRevLett.108.041804