Measurement of Wγ and Zγ production in pp collisions at √s=7 TeV

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dc.contributor.author CMS Collaboration
dc.contributor.author Chatrchyan, S.
dc.contributor.author Albajar, C.
dc.contributor.author Codispoti, G.
dc.contributor.author de Trocóniz, J. F.
dc.contributor.other UAM. Departamento de Física Teórica es_ES
dc.date.accessioned 2016-05-13T13:16:31Z
dc.date.available 2016-05-13T13:16:31Z
dc.date.issued 2011-07-27
dc.identifier.citation Physics Letters B 701.5 (2011) 535-555 en_US
dc.identifier.issn 0370-2693 (print) es_ES
dc.identifier.issn 1873-2445 (online) es_ES
dc.identifier.uri http://hdl.handle.net/10486/670855
dc.description Artículo 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 UAM en_US
dc.description.abstract A measurement of Wγ and Zγ production in proton–proton collisions at √ s = 7 TeV is presented. Results are based on a data sample recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 36 pb−1. The electron and muon decay channels of the W and Z are used. The total cross sections are measured for photon transverse energy Eγ T > 10 GeV and spatial separation from charged leptons in the plane of pseudorapidity and azimuthal angle ΔR(ℓ,γ) > 0.7, and with an additional dilepton invariant mass requirement of Mℓℓ > 50 GeV for the Zγ process. The following cross section times branching fraction values are found: σ(pp→Wγ + X) × B(W→ℓν) = 56.3 ± 5.0(stat.) ± 5.0(syst.)±2.3(lumi.) pb and σ(pp→Zγ + X)×B(Z→ℓℓ) = 9.4±1.0(stat.)±0.6(syst.)±0.4(lumi.) pb. These measurements are in agreement with standard model predictions. The first limits on anomalous WWγ, ZZγ, and Zγγ trilinear gauge couplings at √ s =7 TeV are set en_US
dc.description.sponsorship We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLPFAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA) en_US
dc.format.extent 21 pág. es_ES
dc.format.mimetype application/pdf en
dc.language.iso eng en
dc.publisher CERN en_US
dc.publisher Elsevier en_US
dc.relation.ispartof Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics en_US
dc.rights © 2011 CERN en_US
dc.subject.other Electroweak en_US
dc.subject.other Physics en_US
dc.subject.other CMS en_US
dc.title Measurement of Wγ and Zγ production in pp collisions at √s=7 TeV en_US
dc.type article en
dc.subject.eciencia Física es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.physletb.2011.06.034 es_ES
dc.identifier.doi 10.1016/j.physletb.2011.06.034 es_ES
dc.identifier.publicationfirstpage 535 es_ES
dc.identifier.publicationissue 5 es_ES
dc.identifier.publicationlastpage 555 es_ES
dc.identifier.publicationvolume 701 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion en
dc.rights.cc Reconocimiento – NoComercial – SinObraDerivada es_ES
dc.rights.accessRights openAccess en
dc.authorUAM Fernández Troconiz Acha, Jorge (260192)


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