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Measurement of the muon charge asymmetry in inclusive pp -> W plus X production at root s=7 TeV and an improved determination of light parton distribution functions

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dc.contributor.authorChatrchyan, S.
dc.contributor.authorIşıldak, Bora
dc.contributor.departmentNatural and Mathematical Sciences
dc.contributor.ozuauthorIŞILDAK, Bora
dc.creatorThe CMS Collaboration
dc.date.accessioned2014-11-26T12:19:33Z
dc.date.available2014-11-26T12:19:33Z
dc.date.issued2014-08-01
dc.description.abstractMeasurements of the muon charge asymmetry in inclusive pp -> W + X production at root s = 7 TeV are presented. The data sample corresponds to an integrated luminosity of 4.7 fb(-1) recorded with the CMS detector at the LHC. With a sample of more than 20 million W -> mu nu events, the statistical precision is greatly improved in comparison to previous measurements. These new results provide additional constraints on the parton distribution functions of the proton in the range of the Bjorken scaling variable x from 10(-3) to 10(-1). These measurements and the recent CMS measurement of associated W + charm production are used together with the cross sections for inclusive deep inelastic e(+/-) p scattering at HERA in a next-to-leading-order QCD analysis. The determination of the valence quark distributions is improved, and the strange-quark distribution is probed directly through the leading-order process g + s -> W + c in proton-proton collisions at the LHC.en_US
dc.description.sponsorshipThe Austrian Federal Ministry of Science and Research and the Austrian Science Fund ; the Belgian Fonds de la Recherche Scientifique, and Fonds voor Wetenschappelijk Onderzoek ; the Brazilian Funding Agencies ; 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 ; the Croatian Ministry of Science, Education and Sport ; the Research Promotion Foundation, Cyprus; the Ministry of Education and Research ; and European Regional Development Fund, Estonia; the Academy of Finland, Finnish Ministry of Education and Culture, and Helsinki Institute of Physics; the Institut National de Physique Nucleaire et de Physique des Particules/CNRS, and Commissariat a l’Energie Atomique et aux Energies Alternatives/CEA, France; the Bundesministerium fur 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, Republic of Korea; the Lithuanian Academy of Sciences; the Mexican Funding Agencies ; the Ministry of Business, Innovation and Employment, New Zealand; the Pakistan Atomic Energy Commission; the Ministry of Science and Higher Education and the National Science Centre, Poland; the Fundac¸ao para a Ciencia e a Tecnologia, Portugal; JINR, Dubna; the Ministry of Education and Science of the Russian Federation, the Federal Agency of Atomic Energy of the Russian Federation, Russian Academy of Sciences, and the Russian Foundation for Basic Research; the Ministry of Education, Science and Technological Development of Serbia; the Secretaria de Estado de Investigacio´n, Desarrollo e Innovacion and Programa Consolider-Ingenio 2010, Spain; the Swiss Funding Agencies ; the National Science Council, Taipei; the Thailand Center of Excellence in Physics, the Institute for the Promotion of Teaching Science and Technology of Thailand, Special Task Force for Activating Research and the National Science and Technology Development Agency of Thailand ; the Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authority ; the Science and Technology Facilities Council, UK; the U.S. Department of Energy, and the U.S. National Science Foundation ; 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 (IWTBelgium); the Ministry of Education, Youth and Sports (MEYS) of Czech Republic; the Council of Science and Industrial Research, India; the Compagnia di San Paolo (Torino); the HOMING PLUS program of Foundation for Polish Science, cofinanced by EU, Regional Development Fund ; and the Thalis and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF.
dc.identifier.doi10.1103/PhysRevD.90.032004
dc.identifier.endpage032004-33
dc.identifier.issn1550-2368
dc.identifier.issue3
dc.identifier.startpage032004-1
dc.identifier.urihttp://hdl.handle.net/10679/689
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.90.032004
dc.identifier.volume90
dc.identifier.wos000341105600001
dc.language.isoengen_US
dc.peerreviewedyesen_US
dc.publicationstatuspublisheden_US
dc.publisherAmerican Physical Societyen_US
dc.relationinfo:eu-repo/grantAgreement/TUBITAK/1001 - Araştırmaen_US
dc.relation.ispartofPhysical Review D
dc.rightsrestrictedAccess
dc.subject.keywords3-loop splitting functionsen_US
dc.subject.keywordsHadron Collidersen_US
dc.subject.keywordsLeading-orderen_US
dc.subject.keywordsBoson productionen_US
dc.subject.keywordsLHCen_US
dc.subject.keywordsQCDen_US
dc.subject.keywordsScatteringen_US
dc.subject.keywordsEvolutionen_US
dc.subject.keywordsDensitiesen_US
dc.subject.keywordsTevatronen_US
dc.titleMeasurement of the muon charge asymmetry in inclusive pp -> W plus X production at root s=7 TeV and an improved determination of light parton distribution functionsen_US
dc.typearticleen_US
dspace.entity.typePublication
relation.isOrgUnitOfPublication7a8a2b87-4f48-440a-a491-3c0b2888cbca
relation.isOrgUnitOfPublication.latestForDiscovery7a8a2b87-4f48-440a-a491-3c0b2888cbca

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