Prompt and non-prompt J/psi production in pp collisions at root s=7 TeV
2011
Authors
Khachatryan, V.Adžić, Petar
Đorđević, Miloš
Krpić, D.
Milošević, Jovan
Milenović, Predrag
Reković, Vladimir
CMS Collaboration (ukupan broj autora: 2156)
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The production of J/psi mesons is studied in pp collisions at root s = 7 TeV with the CMS experiment at the LHC. The measurement is based on a dimuon sample corresponding to an integrated luminosity of 314 nb(-1). The J/psi differential cross section is determined, as a function of the J/psi transverse momentum, in three rapidity ranges. A fit to the decay length distribution is used to separate the prompt from the non-prompt (b hadron to J/psi) component. Integrated over J/psi transverse momentum from 6.5 to 30 GeV/c and over rapidity in the range vertical bar y vertical bar LT 2.4, the measured cross sections, times the dimuon decay branching fraction, are 70.9 +/- 2.1(stat.) +/- 3.0(syst.) +/- 7.8(luminosity) nb for prompt J/psi mesons assuming unpolarized production and 26.0 +/- 1.4(stat.) +/- 1.6(syst.) +/- 2.9(luminosity) nb for J/psi mesons from b-hadron decays.
Source:
European Physical Journal C. Particles and Fields, 2011, 71, 3Funding / projects:
- Austrian Federal Ministry of Science and Research, Belgium Fonds de la Recherche Scientifique, Fonds voor Wetenschappelijk Onderzoek, Brazilian Funding Agency CNPq, Brazilian Funding Agency CAPES, Brazilian Funding Agency FAPERJ, Brazilian Funding Agency 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, Helsinki Institute of Physics, Institut National de Physique Nucleaire et de Physique des Particules/CNRS, Commissariat a lEnergie Atomique, 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, NRF, Korea, Lithuanian Academy of Sciences, Mexican Funding Agency CINVESTAV, Mexican Funding Agency CONACYT, Mexican Funding Agency SEP, Mexican Funding Agency UASLP-FAI, 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, Ministry of Science and Technological Development of Serbia, Ministerio de Ciencia 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, UK, US Department of Energy, US National Science Foundation, 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 lindustrie et dans lAgriculture (FRIA-Belgium), Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
DOI: 10.1140/epjc/s10052-011-1575-8
ISSN: 1434-6044; 1434-6052
WoS: 000291698400002
Scopus: 2-s2.0-84857775242
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VinčaTY - JOUR AU - Khachatryan, V. AU - Adžić, Petar AU - Đorđević, Miloš AU - Krpić, D. AU - Milošević, Jovan AU - Milenović, Predrag AU - Reković, Vladimir PY - 2011 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4387 AB - The production of J/psi mesons is studied in pp collisions at root s = 7 TeV with the CMS experiment at the LHC. The measurement is based on a dimuon sample corresponding to an integrated luminosity of 314 nb(-1). The J/psi differential cross section is determined, as a function of the J/psi transverse momentum, in three rapidity ranges. A fit to the decay length distribution is used to separate the prompt from the non-prompt (b hadron to J/psi) component. Integrated over J/psi transverse momentum from 6.5 to 30 GeV/c and over rapidity in the range vertical bar y vertical bar LT 2.4, the measured cross sections, times the dimuon decay branching fraction, are 70.9 +/- 2.1(stat.) +/- 3.0(syst.) +/- 7.8(luminosity) nb for prompt J/psi mesons assuming unpolarized production and 26.0 +/- 1.4(stat.) +/- 1.6(syst.) +/- 2.9(luminosity) nb for J/psi mesons from b-hadron decays. T2 - European Physical Journal C. Particles and Fields T1 - Prompt and non-prompt J/psi production in pp collisions at root s=7 TeV VL - 71 IS - 3 DO - 10.1140/epjc/s10052-011-1575-8 ER -
@article{ author = "Khachatryan, V. and Adžić, Petar and Đorđević, Miloš and Krpić, D. and Milošević, Jovan and Milenović, Predrag and Reković, Vladimir", year = "2011", abstract = "The production of J/psi mesons is studied in pp collisions at root s = 7 TeV with the CMS experiment at the LHC. The measurement is based on a dimuon sample corresponding to an integrated luminosity of 314 nb(-1). The J/psi differential cross section is determined, as a function of the J/psi transverse momentum, in three rapidity ranges. A fit to the decay length distribution is used to separate the prompt from the non-prompt (b hadron to J/psi) component. Integrated over J/psi transverse momentum from 6.5 to 30 GeV/c and over rapidity in the range vertical bar y vertical bar LT 2.4, the measured cross sections, times the dimuon decay branching fraction, are 70.9 +/- 2.1(stat.) +/- 3.0(syst.) +/- 7.8(luminosity) nb for prompt J/psi mesons assuming unpolarized production and 26.0 +/- 1.4(stat.) +/- 1.6(syst.) +/- 2.9(luminosity) nb for J/psi mesons from b-hadron decays.", journal = "European Physical Journal C. Particles and Fields", title = "Prompt and non-prompt J/psi production in pp collisions at root s=7 TeV", volume = "71", number = "3", doi = "10.1140/epjc/s10052-011-1575-8" }
Khachatryan, V., Adžić, P., Đorđević, M., Krpić, D., Milošević, J., Milenović, P.,& Reković, V.. (2011). Prompt and non-prompt J/psi production in pp collisions at root s=7 TeV. in European Physical Journal C. Particles and Fields, 71(3). https://doi.org/10.1140/epjc/s10052-011-1575-8
Khachatryan V, Adžić P, Đorđević M, Krpić D, Milošević J, Milenović P, Reković V. Prompt and non-prompt J/psi production in pp collisions at root s=7 TeV. in European Physical Journal C. Particles and Fields. 2011;71(3). doi:10.1140/epjc/s10052-011-1575-8 .
Khachatryan, V., Adžić, Petar, Đorđević, Miloš, Krpić, D., Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Prompt and non-prompt J/psi production in pp collisions at root s=7 TeV" in European Physical Journal C. Particles and Fields, 71, no. 3 (2011), https://doi.org/10.1140/epjc/s10052-011-1575-8 . .