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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

dc.contributor.authorBarreiro Alonso, Fernando 
dc.contributor.authorCantero, J.
dc.contributor.authorDe la Torre, H.
dc.contributor.authorPeso Malagón, José del 
dc.contributor.authorGlasman Kuguel, Claudia Beatriz 
dc.contributor.authorLabarga Echeverría, Luis Alfonso 
dc.contributor.authorLagouri, T.
dc.contributor.authorLlorente Merino, J.
dc.contributor.authorMarch, Luis
dc.contributor.authorNebot, Eduardo
dc.contributor.authorRodier, Stephane
dc.contributor.authorTerrón Cuadrado, Juan 
dc.contributor.authorATLAS Collaboration
dc.contributor.otherUAM. Departamento de Física Teóricaes_ES
dc.date.accessioned2016-03-02T14:02:03Z
dc.date.available2016-03-02T14:02:03Z
dc.date.issued2012-01-05
dc.identifier.citationPhysics Letters B 706.4-5 (2012) 295-313en_US
dc.identifier.issn0370-2693 (print)es_ES
dc.identifier.issn1873-2445 (online)es_ES
dc.identifier.urihttp://hdl.handle.net/10486/670033
dc.descriptionArtículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMen_US
dc.description.abstractA 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 √ 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 pT electrons or muons, and at least one b-jet, identified by its displaced vertex, with transverse momentum pT > 25 GeV and rapidity |y| < 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 orderen_US
dc.description.sponsorshipWe acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; ARTEMIS, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNAS, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN and the ATLAS Tier- 1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NLT1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA) and in the Tier-2 facilities worldwideen_US
dc.format.extent19 pág.es_ES
dc.format.mimetypeapplication/pdfen
dc.language.isoengen
dc.publisherCERNen_US
dc.publisherElsevieren_US
dc.relation.ispartofPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physicsen_US
dc.rights© 2011 CERNen_US
dc.subject.otherB-Jeten_US
dc.subject.otherCross-sectionen_US
dc.subject.otherStandard Modelen_US
dc.subject.otherZ bosonen_US
dc.titleMeasurement of the cross-section for b-jets produced in association with a Z boson at √s=7 TeV with the ATLAS detectoren_US
dc.typearticleen
dc.subject.ecienciaFísicaes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.physletb.2011.11.059es_ES
dc.identifier.doi10.1016/j.physletb.2011.11.059es_ES
dc.identifier.publicationfirstpage295es_ES
dc.identifier.publicationissue4-5es_ES
dc.identifier.publicationlastpage313es_ES
dc.identifier.publicationvolume706es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/FP7/303482es_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
dc.rights.ccReconocimiento – NoComercial – SinObraDerivadaes_ES
dc.rights.accessRightsopenAccessen
dc.authorUAMLagouri , Theodota (263922)
dc.authorUAMLabarga Echeverría, Luis Alfonso (259926)
dc.authorUAMMarch Ruiz, Luis (264217)
dc.authorUAMNebot Del Busto, Eduardo (264001)
dc.authorUAMBarreiro Alonso, Fernando (259561)
dc.authorUAMRodier , Stephane (260644)
dc.facultadUAMFacultad de Ciencias


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