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dc.contributor.authorALICE Collaboration
dc.contributor.authorBarnby, Lee
dc.date.accessioned2018-03-29T13:59:13Z
dc.date.available2018-03-29T13:59:13Z
dc.date.issued2014-02-18
dc.identifier.citationALICE Collaboration (2014) 'J/ψ production and nuclear effects in p-Pb collisions at √sNN=5.02 TeV.', Journal of Higher Energy Physics, 2014: 73. https://doi.org/10.1007/JHEP02(2014)073.en
dc.identifier.issn10298479
dc.identifier.doi10.1007/JHEP02(2014)073
dc.identifier.urihttp://hdl.handle.net/10545/622479
dc.description.abstractInclusive J/ψ production has been studied with the ALICE detector in p-Pb collisions at the nucleon-nucleon center of mass energy sNN−−−√ = 5.02 TeV at the CERN LHC. The measurement is performed in the center of mass rapidity domains 2.03 < y cms < 3.53 and −4.46 < y cms < −2.96, down to zero transverse momentum, studying the μ + μ − decay mode. In this paper, the J/ψ production cross section and the nuclear modification factor R pPb for the rapidities under study are presented. While at forward rapidity, corresponding to the proton direction, a suppression of the J/ψ yield with respect to binary-scaled pp collisions is observed, in the backward region no suppression is present. The ratio of the forward and backward yields is also measured differentially in rapidity and transverse momentum. Theoretical predictions based on nuclear shadowing, as well as on models including, in addition, a contribution from partonic energy loss, are in fair agreement with the experimental results.
dc.description.sponsorshipState Committee of Science, World Federation of Scientists (WFS) and Swiss Fonds Kida- gan, Armenia, Conselho Nacional de Desenvolvimento Cient ́ıfico e Tecnolo ́gico (CNPq), Financiadora de Estudos e Projetos (FINEP), Funda ̧c ̃ao de Amparo `a Pesquisa do Estado de S ̃ao Paulo (FAPESP); National Natural Science Foundation of China (NSFC), the Chinese Ministry of Education (CMOE) and the Ministry of Science and Technology of China (MSTC); Ministry of Education and Youth of the Czech Republic; Danish Natural Science Research Council, the Carlsberg Foundation and the Danish Na- tional Research Foundation; The European Research Council under the European Community’s Seventh Framework Programme; Helsinki Institute of Physics and the Academy of Finland; French CNRS-IN2P3, the ‘Region Pays de Loire’, ‘Region Alsace’, ‘Region Auvergne’ and CEA, France; German BMBF and the Helmholtz Association; General Secretariat for Research and Technology, Ministry of Development, Greece; Hungarian OTKA and National Office for Research and Technology (NKTH); Department of Atomic Energy and Department of Science and Technology of the Govern- ment of India; Istituto Nazionale di Fisica Nucleare (INFN) and Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi”, Italy; MEXT Grant-in-Aid for Specially Promoted Research, Japan; Joint Institute for Nuclear Research, Dubna; National Research Foundation of Korea (NRF); CONACYT, DGAPA, M ́exico, ALFA-EC and the EPLANET Program (European Particle Physics Latin American Network) Stichting voor Fundamenteel Onderzoek der Materie (FOM) and the Nederlandse Organ- isatie voor Wetenschappelijk Onderzoek (NWO), Netherlands; Research Council of Norway (NFR); Polish Ministry of Science and Higher Education; National Authority for Scientific Research - NASR (Autoritatea Na ̧tionala ̆ pentru Cerc- etare S ̧tiin ̧tific ̆a - ANCS); Ministry of Education and Science of Russian Federation, Russian Academy of Sciences, Russian Federal Agency of Atomic Energy, Russian Federal Agency for Science and Inno- vations and The Russian Foundation for Basic Research; Ministry of Education of Slovakia; Department of Science and Technology, South Africa; CIEMAT, EELA, Ministerio de Econom ́ıa y Competitividad (MINECO) of Spain, Xunta de Galicia (Conseller ́ıa de Educaci ́on), CEADEN, Cubaenerg ́ıa, Cuba, and IAEA (Inter- national Atomic Energy Agency); Swedish Research Council (VR) and Knut & Alice Wallenberg Foundation (KAW); Ukraine Ministry of Education and Science; United Kingdom Science and Technology Facilities Council (STFC); The United States Department of Energy, the United States National Science Foundation, the State of Texas, and the State of Ohio.en
dc.language.isoenen
dc.publisherSpringeren
dc.relation.urlhttps://link.springer.com/article/10.1007%2FJHEP02%282014%29073en
dc.subjectProtonsen
dc.subjectNuclear reactionsen
dc.subjectPb-Pb collisionsen
dc.subjectParticle physicsen
dc.titleJ/ψ production and nuclear effects in p-Pb collisions at √sNN=5.02 TeV.en
dc.typeArticleen
dc.contributor.departmentUniversity of Birminghamen
dc.identifier.journalJournal of High Energy Physicsen
html.description.abstractInclusive J/ψ production has been studied with the ALICE detector in p-Pb collisions at the nucleon-nucleon center of mass energy sNN−−−√ = 5.02 TeV at the CERN LHC. The measurement is performed in the center of mass rapidity domains 2.03 < y cms < 3.53 and −4.46 < y cms < −2.96, down to zero transverse momentum, studying the μ + μ − decay mode. In this paper, the J/ψ production cross section and the nuclear modification factor R pPb for the rapidities under study are presented. While at forward rapidity, corresponding to the proton direction, a suppression of the J/ψ yield with respect to binary-scaled pp collisions is observed, in the backward region no suppression is present. The ratio of the forward and backward yields is also measured differentially in rapidity and transverse momentum. Theoretical predictions based on nuclear shadowing, as well as on models including, in addition, a contribution from partonic energy loss, are in fair agreement with the experimental results.


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