期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 10, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP10(2011)132
关键词
Hadron-Hadron Scattering
资金
- European Research Council (European Union)
- Leventis Foundation
- A. P. Sloan Foundation
- Alexander von Humboldt Foundation
- Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy)
- 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-Belgium)
- Council of Science and Industrial Research, India
- Austrian Federal Ministry of Science and Research
- Belgium Fonds de la Recherche Scientifique
- Fonds voor Wetenschappelijk Onderzoek
- CNPq
- CAPES
- FAPERJ
- FAPESP
- Bulgarian Ministry of Education and Science
- CERN
- Chinese Academy of Sciences
- Ministry of Science and Technology
- National Natural Science Foundation of China
- Colombian Funding Agency (COLCIENCIAS)
- Croatian Ministry of Science, Education and Sport
- Research Promotion Foundation, Cyprus
- Estonian Academy of Sciences
- NICPB
- Academy of Finland
- Finnish Ministry of Education and Culture
- Helsinki Institute of Physics
- Institut National de Physique Nucleaire et de Physique des Particules / CNRS
- Commissariat a l' Energie Atomique et aux Energies Alternatives / CEA, France
- Bundesministerium fur Bildung und Forschung
- Deutsche Forschungsgemeinschaft
- Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany
- General Secretariat for Research and Technology, Greece
- National Scientific Research Foundation
- National Office for Research and Technology, Hungary
- Department of Atomic Energy
- Department of Science and Technology, India
- Institute for Studies in Theoretical Physics and Mathematics, Iran
- Science Foundation, Ireland
- Istituto Nazionale di Fisica Nucleare, Italy
- Korean Ministry of Education, Science and Technology
- World Class University of NRF, Korea
- Lithuanian Academy of Sciences
- CIN-VESTAV
- CONACYT
- SEP
- UASLP-FAI
- Ministry of Science and Innovation, New Zealand
- Pakistan Atomic Energy Commission
- State Commission for Scientific Research, Poland
- Fundacao para a Ciencia e a Tecnologia, Portugal
- JINR (Armenia)
- JINR (Belarus)
- JINR (Georgia)
- JINR (Ukraine)
- JINR (Uzbekistan)
- Ministry of Science and Technologies of the Russian Federation
- Russian Ministry of Atomic Energy
- Russian Foundation for Basic Research
- Ministry of Science and Technological Development of Serbia
- Ministerio de Ciencia e Innovacion
- Programa Consolider-Ingenio, Spain
- ETH Board
- ETH Zurich
- PSI
- SNF
- UniZH
- Canton Zurich
- SER
- National Science Council, Taipei
- Scientific and Technical Research Council of Turkey
- Turkish Atomic Energy Authority
- Science and Technology Facilities Council, UK
- US Department of Energy
- US National Science Foundation
- STFC [ST/G502347/1, ST/F006748/1, ST/I000410/1, ST/I005912/1, ST/F007094/1, ST/I002200/1, ST/I505572/1, ST/H00081X/2] Funding Source: UKRI
- Science and Technology Facilities Council [ST/F007094/1, ST/I505572/1, ST/I000410/1, GRIDPP, ST/G502347/1, ST/I005912/1, CMS, ST/F006748/1, ST/I005912/1 GRIDPP, ST/I002200/1, PP/D004284/1] Funding Source: researchfish
A measurement of inclusive W and Z production cross sections in pp collisions at root s = 7 TeV is presented. The electron and muon decay channels are analyzed in a data sample collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 36 pb(-1). The measured inclusive cross sections are sigma(pp -> WX) x B(W -> lv) = 10.31 +/- 0.02 (stat.) +/- 0.09 (syst.) +/- 0.10 (th.) +/- 0.41 (lumi.) nb and sigma(pp -> ZX) x B(Z -> l(broken vertical bar) l(-)) = 0.974 +/- 0.007 (stat.) +/- 0.007 (syst.) +/- 0.018 (th.) +/- 0.039 (lumi.) nb, limited to the dilepton invariant mass range 60 to 120 GeV. The luminosity-independent cross section ratios are (sigma(pp -> WX) x B(W -> lv)) / (sigma(pp -> ZX) x B(Z -> l(+)l(-))) = 10.54 +/- 0.07 (stat.) +/- 0.08 (syst.) +/- 0.16 (th.) and (sigma(pp -> W+ X) x B(W+ -> l(+) v)) / (sigma(pp -> W- X) x B(W- -> l(-) (v) over bar)) = 1.421 +/- 0.006 (stat.) +/- 0.014 (syst.) +/- 0.029 (th.). The measured values agree with next-to-next-to-leading order QCD cross section calculations based on recent parton distribution functions.
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