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Study of Z production in PbPb and pp collisions at √sNN =2.76 TeV in the dimuon and dielectron decay channels

dc.contributor.authorAlbajar Molera, Carmen 
dc.contributor.authorChatrchyan, S.
dc.contributor.authorMissiroli, M.
dc.contributor.authorMoran, D.
dc.contributor.authorThe CMS Collaboration
dc.contributor.authorFernández Trocóniz Acha, Jorge 
dc.contributor.otherUAM. Departamento de Física Teóricaes_ES
dc.date.accessioned2016-06-10T14:55:51Z
dc.date.available2016-06-10T14:55:51Z
dc.date.issued2015-03-04
dc.identifier.citationJournal of High Energy Physics 2015.3 (2015): 022en_US
dc.identifier.issn1126-6708 (print)es_ES
dc.identifier.issn1029-8479 (online)es_ES
dc.identifier.urihttp://hdl.handle.net/10486/671387
dc.descriptionJournal of High Energy Physics 2015.3 (2015): 022 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)en_US
dc.description.abstractThe production of Z bosons is studied in the dimuon and dielectron decay channels in PbPb and pp collisions at √sNN = 2.76 TeV, using data collected by the CMS experiment at the LHC. The PbPb data sample corresponds to an integrated luminosity of about 166 μb−1, while the pp data sample collected in 2013 at the same nucleon-nucleon centre-of-mass energy has an integrated luminosity of 5.4 pb−1. The Z boson yield is measured as a function of rapidity, transverse momentum, and collision centrality. The ratio of PbPb to pp yields, scaled by the number of inelastic nucleon-nucleon collisions, is found to be 1.06 ± 0.05 (stat) ± 0.08 (syst) in the dimuon channel and 1.02 ± 0.08 (stat) ± 0.15 (syst) in the dielectron channel, for centrality-integrated Z boson production. This binary collision scaling is seen to hold in the entire kinematic region studied, as expected for a colourless probe that is unaffected by the hot and dense QCD medium produced in heavy ion collisionsen_US
dc.description.sponsorshipWe congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centres and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); MoER, ERC IUT and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Republic of Korea); LAS (Lithuania); MOE and UM (Malaysia); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (United Kingdom); DOE and NSF (USA). Individuals have received support from the Marie-Curie programme and the European Research Council and EPLANET (European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation `a la Recherche dans l’Industrie et dans l’Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Council of Science and Industrial Research, India; the HOMING PLUS programme of Foundation for Polish Science, cofinanced from European Union, Regional Development Fund; the Compagnia di San Paolo (Torino); the Consorzio per la Fisica (Trieste); MIUR project 20108T4XTM (Italy); the Thalis and Aristeia programmes ofinanced by EU-ESF and the Greek NSRF; and the National Priorities Research Program by Qatar National Research Funden_US
dc.format.extent40 pag.es_ES
dc.format.mimetypeapplication/pdfen
dc.language.isoengen
dc.publisherSpringer Verlagen_US
dc.relation.ispartofJournal of High Energy Physicsen_US
dc.rights© 2015, The Author(s).en_US
dc.subject.otherHeavy Ionsen_US
dc.subject.otherHeavy-ion collisionen_US
dc.subject.otherParticle and resonance productionen_US
dc.subject.otherproton-proton scatteringen_US
dc.titleStudy of Z production in PbPb and pp collisions at √sNN =2.76 TeV in the dimuon and dielectron decay channelsen_US
dc.typearticleen
dc.subject.ecienciaFísicaes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1007/JHEP03(2015)022es_ES
dc.identifier.doi10.1007/JHEP03(2015)022es_ES
dc.identifier.publicationfirstpage022es_ES
dc.identifier.publicationissue3es_ES
dc.identifier.publicationlastpage022es_ES
dc.identifier.publicationvolume2015es_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
dc.rights.ccReconocimientoes_ES
dc.rights.accessRightsopenAccessen
dc.authorUAMFernández Troconiz Acha, Jorge (260192)
dc.facultadUAMFacultad de Ciencias


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