Study of high-p(T) charged particle suppression in PbPb compared to pp collisions at root s(NN)=2.76 TeV
CMS Collaboration (ukupan broj autora: 2275)
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The transverse momentum spectra of charged particles have been measured in pp and PbPb collisions at root s(NN) = 2.76 TeV by the CMS experiment at the LHC. In the transverse momentum range p(T) = 5-10 GeV/c, the charged particle yield in the most central PbPb collisions is suppressed by up to a factor of 7 compared to the pp yield scaled by the number of incoherent nucleon-nucleon collisions. At higher p(T), this suppression is significantly reduced, approaching roughly a factor of 2 for particles with p(T) in the range p(T) = 40-100 GeV/c.
Извор:European Physical Journal C. Particles and Fields, 2012, 72, 3
- 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 FAPERJ, and 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, Ministry of Education and Research [SF0690030s09], European Regional Development Fund, Estonia, 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 lEnergie 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, NRF, Korea, Lithuanian Academy of Sciences, Mexican Funding Agency CINVESTAV, Mexican Funding Agency CONACYT, Mexican Funding Agency SEP, Mexican Funding Agency UASLP-FAI, Ministry of Science and Innovation, New Zealand, Pakistan Atomic Energy Commission, Ministry of Science and Higher Education, National Science Centre, Poland, Fundacao para a Ciencia e a Tecnologia, Portugal, JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan), Ministry of Education and Science of the Russian Federation, Federal Agency of Atomic Energy of the Russian Federation, Russian Academy of Sciences, Russian Foundation for Basic Research, Ministry of Science and Technological Development of Serbia, Ministerio de Ciencia e Innovacion, Programa Consolider-Ingenio, 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 Re-search Council of Turkey, Turkish Atomic Energy Authority, Science and Technology Facilities Council, UK, 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 lIndustrie et dans lAgriculture (FRIA-Belgium), Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium), Council of Science and Industrial Research, India, HOMING PLUS of Foundation for Polish Science, European Union
ISSN: 1434-6044 (print); 1434-6052 (electronic)