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Measurement of the tt production cross section and the top quark mass in the dilepton channel in pp collisions at vs = 7 TeV: The CMS collaboration

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.authorPiedra Gómez, Jonatan 
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.accessioned2023-03-30T09:45:50Z
dc.date.available2023-03-30T09:45:50Z
dc.date.issued2011-07
dc.identifier.issn1126-6708
dc.identifier.issn1029-8479
dc.identifier.urihttps://hdl.handle.net/10902/28418
dc.description.abstractThe tt¯ production cross section and top quark mass are measured in proton-proton collisions at s√=7 TeV in a data sample corresponding to an integrated luminosity of 36 pb−1 collected by the CMS experiment. The measurements are performed in events with two leptons (electrons or muons) in the final state. Results of the cross section measurement in events with and without b-quark identification are obtained and combined. The measured value is σtt¯ = 168 ± 18 (stat.) ± 14 (syst.) ± 7 (lumi.) pb, consistent with predictions from the standard model. The top quark mass m top is reconstructed with two different methods, a full kinematic analysis and a matrix weighting technique. The combination yields a measurement of m top = 175.5 ± 4.6 (stat.) ± 4.6 (syst.) GeV/c 2.es_ES
dc.description.sponsorshipWe 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. This work was supported by the Austrian Federal Ministry of Science and Research; the Belgium Fonds de la Recherche Scientifique, and Fonds voor Wetenschappelijk Onderzoek; the Brazilian Funding Agencies (CNPq, CAPES, FAPERJ, and FAPESP); the Bulgarian Ministry of Education and Science; CERN; the Chinese Academy of Sciences, Ministry of Science and Technology, and National Natural Science Foundation of China; the Colombian Funding Agency (COLCIENCIAS); the Croatian Ministry of Science, Education and Sport; the Research Promotion Foundation, Cyprus; the Estonian Academy of Sciences and NICPB; the Academy of Finland, Finnish Ministry of Education and Culture, and Helsinki Institute of Physics; the Institut National de Physique Nucléaire et de Physique des Particules / CNRS, and Commissariat à l’Energie Atomique et aux Energies Alternatives / CEA, France; the Bundesministerium für Bildung und Forschung, Deutsche Forschungsgemeinschaft, and Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany; the General Secretariat for Research and Technology, Greece; the National Scientific Research Foundation, and National Office for Research and Technology, Hungary; the Department of Atomic Energy and the Department of Science and Technology, India; the Institute for Studies in Theoretical Physics and Mathematics, Iran; the Science Foundation, Ireland; the Istituto Nazionale di Fisica Nucleare, Italy; the Korean Ministry of Education, Science and Technology and the World Class University program of NRF, Korea; the Lithuanian Academy of Sciences; the Mexican Funding Agencies (CINVESTAV, CONACYT, SEP, and UASLP-FAI); the Ministry of Science and Innovation, New Zealand; the Pakistan Atomic Energy Commission; the State Commission for Scientific Research, Poland; the Fundacao para a Ciencia e a Tecnologia, Portugal; JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); the Ministry of Science and Technologies of the Russian Federation, and Russian Ministry of Atomic Energy; the Ministry of Science and Technological Development of Serbia; the Ministerio de Ciencia e Innovación, and Programa Consolider-Ingenio 2010, Spain; the Swiss Funding Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, and SER); the National Science Council, Taipei; the Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authority; the Science and Technology Facilities Council, UK; the US Department of Energy, and the US National Science Foundation. Individuals have received support from the Marie-Curie programme and the European Research Council (European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy); the Belgian Federal Science Policy Office; the Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); and the Council of Science and Industrial Research, India.es_ES
dc.format.extent49 p.es_ES
dc.language.isoenges_ES
dc.publisherSpringer Verlages_ES
dc.rightsAttribution-NonCommercial 4.0 International. ©CERN, for the benefit of the CMS collaborationes_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.sourceJournal of High Energy Physics, 2011, 2011(7), 49es_ES
dc.subject.otherHadron-hadron scatteringes_ES
dc.titleMeasurement of the tt production cross section and the top quark mass in the dilepton channel in pp collisions at vs = 7 TeV: The CMS collaborationes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherVersionhttps://doi.org/10.1007/JHEP07(2011)049es_ES
dc.rights.accessRightsopenAccesses_ES
dc.identifier.DOI10.1007/JHEP07(2011)049
dc.type.versionpublishedVersiones_ES


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