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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/24605
Title: 
Measurement of the weak mixing angle with the Drell-Yan process in proton-proton collisions at the LHC
Author(s): 
Institution: 
  • Yerevan Phys Inst
  • OeAW
  • Natl Ctr Particle & High Energy Phys
  • Univ Antwerp
  • Vrije Univ Brussel
  • Univ Libre Brussels
  • Univ Ghent
  • Catholic Univ Louvain
  • Univ Mons
  • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • Univ Estado Rio de Janeiro
  • Petersburg Nucl Phys Inst
  • Russian Acad Sci
  • Institute for Theoretical and Experimental Physics (ITEP)
  • Moscow MV Lomonosov State Univ
  • PN Lebedev Phys Inst
  • State Res Ctr Russian Federat
  • University of Belgrade
  • Vinca Inst Nucl Sci
  • Ctr Invest Energet Medioambientales & Tecnol CIEM
  • Univ Autonoma Madrid
  • Universidade Estadual Paulista (UNESP)
  • Univ Oviedo
  • USACSIC Univ Cantabria
  • CERN
  • Paul Scherrer Inst
  • ETH
  • Univ Zurich
  • Natl Cent Univ
  • Natl Taiwan Univ
  • Cukurova Univ
  • Middle E Tech Univ
  • Bulgarian Acad Sci
  • Bogazici Univ
  • Kharkov Phys & Technol Inst
  • Univ Bristol
  • Rutherford Appleton Lab
  • Univ London Imperial Coll Sci Technol & Med
  • Brunel Univ
  • Baylor Univ
  • Univ Alabama
  • Boston University
  • Brown University
  • Univ Sofia
  • Univ Calif Davis
  • Univ Calif Los Angeles
  • University of California, Riverside (UCR)
  • Univ Calif San Diego
  • Univ Calif Santa Barbara
  • CALTECH
  • Carnegie Mellon Univ
  • Univ Colorado
  • Cornell Univ
  • Fairfield Univ
  • Inst High Energy Phys
  • Fermilab Natl Accelerator Lab
  • Univ Florida
  • Florida Int Univ
  • Florida State University
  • Florida Inst Technol
  • Univ Illinois
  • Univ Iowa
  • Johns Hopkins Univ
  • University of Kansas (KU)
  • Kansas State University
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  • Lawrence Livermore Natl Lab
  • University of Maryland
  • MIT
  • Univ Minnesota
  • University of Mississippi
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  • SUNY Buffalo
  • Northeastern University
  • Northwestern University (NU)
  • Univ Notre Dame
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  • Brandenburg Tech Univ Cottbus
  • Eotvos Lorand Univ
  • Visva Bharati Univ
  • Sharif Univ Technol
  • Isfahan Univ Technol
  • Shiraz Univ
  • Rudjer Boskovic Inst
  • Univ Rome
  • Univ Basilicata
  • Lab Nazl Legnaro INFN
  • Univ Siena
  • Univ Geneva
  • Gaziosmanpasa Univ
  • Adiyaman Univ
  • Mersin Univ
  • Kafkas Univ
  • Univ Cyprus
  • Suleyman Demirel Univ
  • Ege Univ
  • Univ Southampton
  • Utah Valley Univ
  • Erzincan Univ
  • Scuola Normale
  • Sezione Ist Nazl Fis Nucl
  • Univ Roma La Sapienza
  • Univ Perugia
  • Los Alamos Natl Lab
  • Charles Univ Prague
  • Acad Sci Res & Technol Arab Republ Egypt
  • NICPB
  • Univ Helsinki
  • Helsinki Inst Phys
  • Lappeenranta Univ Technol
  • IN2P3 CNRS
  • CEA Saclay
  • Ecole Polytech
  • Univ Haute
  • Inst Natl Phys Nucl & Phys Particules IN2P3
  • Univ Lyon 1
  • Tbilisi State Univ
  • RWTH Aachen University
  • DESY
  • Univ Hamburg
  • Univ Karlsruhe
  • Inst Nucl Phys Demokritos
  • Univ Athens
  • Univ Ioannina
  • KFKI Res Inst Particle & Nucl Phys
  • Inst Nucl Res ATOMKI
  • Univ Debrecen
  • Panjab Univ
  • Saha Inst Nucl Phys
  • University of Delhi
  • Bhabha Atom Res Ctr
  • Tata Inst Fundamental Res EHEP
  • Tata Inst Fundamental Res HECR
  • Inst Res & Fundamental Sci IPM
  • INFN Sez Bari
  • Univ Bari
  • Politecn Bari
  • INFN Sez Bologna
  • Univ Bologna
  • INFN Sez Catania
  • Univ Catania
  • INFN Sez Firenze
  • Univ Florence
  • INFN Lab Nazl Frascati
  • INFN Sez Genova
  • INFN Sez Milano Bicocca
  • Univ Milano Bicocca
  • INFN Sez Napoli
  • Univ Naples Federico II
  • INFN Sez Padova
  • Univ Padua
  • Univ Trento Trento
  • INFN Sez Pavia
  • Univ Pavia
  • INFN Sez Pisa
  • Univ Pisa
  • Scuola Normale Super Pisa
  • INFN Sez Torino
  • Univ Turin
  • Univ Piemonte Orientale Novara
  • INFN Sez Trieste
  • Univ Trieste
  • Kangwon Natl Univ
  • Kyungpook Natl Univ
  • Chonnam Natl Univ
  • Konkuk Univ
  • Korea University
  • Univ Seoul
  • Sungkyunkwan Univ
  • Vilnius Univ
  • IPN
  • Univ Iberoamer
  • Benemerita Univ Autonoma Puebla
  • Univ Autonoma San Luis Potosi
  • Univ Auckland
  • Univ Canterbury
  • Quaid I Azam Univ
  • Univ Warsaw
  • Soltan Inst Nucl Studies
  • Lab Instrumentacao & Fis Expt Particulas
  • Joint Inst Nucl Res
ISSN: 
1550-7998
Sponsorship: 
  • Austrian Federal Ministry of Science and Research
  • Belgium Fonds de la Recherche Scientifique
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
  • Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
  • Bulgarian Ministry of Education and Science
  • Chinese Academy of Sciences (CAS)
  • Colombian Funding Agency (COLCIENCIAS)
  • Croatian Ministry of Science, Education and Sport
  • Research Promotion Foundation (RPF)
  • Estonian Academy of Sciences and NICPB
  • Academy of Finland
  • Institut national de physique nucléaire et de physique des particules (IN2P3/CNRS)
  • Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
  • Bundesministerium für Bildung und Forschung (BMBF)
  • Deutsche Forschungsgemeinschaft (DFG)
  • Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany
  • General Secretariat for Research and Technology (GSRT)
  • National Scientific Research Foundation
  • National Office for Research and Technology, Hungary
  • Department of Atomic Energy
  • Department of Science and Technology (DST) - India
  • Institute for Studies in Theoretical Physics and Mathematics, Iran
  • Science Foundation Ireland (SFI)
  • Istituto Nazionale di Fisica Nucleare (INFN)
  • Korean Ministry of Education, Science and Technology
  • National Research Foundation of Korea (NRF)
  • Lithuanian Academy of Sciences
  • Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV)
  • Consejo Nacional de Ciencia y Tecnología (CONACYT)
  • Mexican Funding Agency (SEP)
  • Mexican Funding Agency (UASLP-FAI)
  • Ministry of Science and Innovation, New Zealand
  • Pakistan Atomic Energy Commission (PAEC)
  • State Commission for Scientific Research, Poland
  • Fundação para a Ciência e a Tecnologia (FCT)
  • Joint Institute for Nuclear Research (JINR)
  • Ministry of Science and Technologies of the Russian Federation
  • Russian Ministry of Atomic Energy
  • Russian Foundation for Basic Research (RFBR)
  • Ministry of Science and Technological Development of Serbia
  • Ministerio de Ciência e Innovacion
  • Programa Consolider-Ingenio 2010, Spain
  • Swiss Funding Agency (ETH Board)
  • Swiss Funding Agency (ETH Zurich)
  • Swiss Funding Agency (PSI)
  • Swiss Funding Agency (SNF)
  • Swiss Funding Agency (UniZH)
  • Swiss Funding Agency (Canton Zurich)
  • Swiss Funding Agency (SER)
  • National Science Council, Taipei
  • Scientific and Technical Research Council of Turkey
  • Turkish Atomic Energy Authority
  • Science and Technology Facilities Council (STFC)
  • US Department of Energy
  • US National Science Foundation
  • Marie-Curie programme
  • European Research Council (European Union)
  • Leventis Foundation
  • A. P. Sloan Foundation
  • Alexander von Humboldt Foundation
  • Belgian Federal Science Policy Office
  • Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
  • Agentschap voor Innovatie door Wetenschap en Technologie (IWT)
  • Council of Scientific and Industrial Research (CSIR) - India
  • Fonds voor Wetenschappelijk Onderzoek
  • Ministry of Science and Technology
  • National Natural Science Foundation of China (NSFC)
  • Organisation Européenne pour la Recherche Nucléaire (CERN)
Abstract: 
A multivariate likelihood method to measure electroweak couplings with the Drell-Yan process at the LHC is presented. The process is described by the dilepton rapidity, invariant mass, and decay angle distributions. The decay angle ambiguity due to the unknown assignment of the scattered constituent quark and antiquark to the two protons in a collision is resolved statistically using correlations between the observables. The method is applied to a sample of dimuon events from proton-proton collisions at root s = 7 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 1.1 fb(-1). From the dominant u (u) over bar, d (d) over bar -> gamma*/Z -> mu(-)mu(+) process, the effective weak mixing angle parameter is measured to be sin(2)theta(eff) = 0.2287 +/- 0.0020 (stat.) +/- 0.0025 (syst.) This result is consistent with measurements from other processes, as expected within the standard model.
Issue Date: 
8-Dec-2011
Citation: 
Physical Review D. College Pk: Amer Physical Soc, v. 84, n. 11, p. 23, 2011.
Time Duration: 
23
Publisher: 
Amer Physical Soc
Source: 
http://dx.doi.org/10.1103/PhysRevD.84.112002
URI: 
http://hdl.handle.net/11449/24605
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/24605
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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