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Measurement of the mass difference between top and antitop quarks

dc.contributor.authorChatrchyan, S.
dc.contributor.authorBrochero Cifuentes, Javier Andrés 
dc.contributor.authorCabrillo Bartolomé, José Iban 
dc.contributor.authorCalderón Tazón, Alicia 
dc.contributor.authorChuang, S. H.
dc.contributor.authorDuarte Campderros, Jorge 
dc.contributor.authorFelcini, Marta
dc.contributor.authorFernández García, Marcos 
dc.contributor.authorGómez Gramuglio, Gervasio 
dc.contributor.authorGonzález Sánchez, Francisco Javier 
dc.contributor.authorJordá Lope, Clara
dc.contributor.authorLobelle Pardo, Patricia
dc.contributor.authorLópez Virto, María Amparo
dc.contributor.authorMarco de Lucas, Jesús 
dc.contributor.authorMarco de Lucas, Rafael José
dc.contributor.authorMartínez Rivero, Celso
dc.contributor.authorMatorras Weinig, Francisco 
dc.contributor.authorMuñoz Sánchez, Francisca Javiela
dc.contributor.authorRodrigo Anoro, Teresa 
dc.contributor.authorRodríguez Marrero, Ana Yaiza
dc.contributor.authorRuiz Jimeno, Alberto 
dc.contributor.authorScodellaro, Luca 
dc.contributor.authorSobrón Sañudo, Mar
dc.contributor.authorVila Álvarez, Iván  
dc.contributor.authorVilar Cortabitarte, Rocío 
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2023-05-17T09:50:15Z
dc.date.available2023-05-17T09:50:15Z
dc.date.issued2012-06
dc.identifier.issn1126-6708
dc.identifier.issn1029-8479
dc.identifier.urihttps://hdl.handle.net/10902/28929
dc.description.abstractA measurement of the mass difference between the top and the antitop quark (∆mt = mt − mt ) is performed using events with a muon or an electron and at least four jets in the final state. The analysis is based on data collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.96±0.11 fb−1 , and yields the value of ∆mt = −0.44±0.46 (stat.)±0.27 (syst.) GeV. This result is consistent with equality of particle and antiparticle masses required by CPT invariance, and provides a significantly improved precision relative to existing measurements.es_ES
dc.description.sponsorshipWe congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine, thank the technical and administrative staffs at CERN and other CMS institutes for their assistance, 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, MEC, 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 UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MON, RosAtom, RAS and RFBR (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (U.S.A.).es_ES
dc.format.extent36 p.es_ES
dc.language.isoenges_ES
dc.publisherSpringer Verlages_ES
dc.rightsAttribution 4.0 International. ©CERN, for the benefit of the CMS Collaborationes_ES
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.sourceJournal of High Energy Physics, 2012, 2012(6), 109es_ES
dc.subject.otherHadron-hadron scatteringes_ES
dc.titleMeasurement of the mass difference between top and antitop quarkses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherVersionhttps://doi.org/10.1007/JHEP06(2012)109es_ES
dc.rights.accessRightsopenAccesses_ES
dc.identifier.DOI10.1007/JHEP06(2012)109
dc.type.versionpublishedVersiones_ES


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