期刊
PHYSICS LETTERS B
卷 798, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.physletb.2019.134926
关键词
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资金
- Worldwide LHC Computing Grid (WLCG) collaboration
- A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation (ANSL), Armenia
- State Committee of Science, Armenia
- Austrian Academy of Sciences, Austria
- Austrian Science Fund (FWF), Austria [M 2467-N36]
- Nationalstiftung fur Forschung, Technologie und Entwicklung, Austria
- Ministry of Communications and High Technologies, National Nuclear Research Center, Azerbaijan
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Brazil
- Financiadora de Estudos e Projetos (Finep), Brazil
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Brazil
- Ministry of Science & Technology of China (MSTC), China
- National Natural Science Foundation of China (NSFC), China
- Ministry of Education of China (MOEC), China
- Croatian Science Foundation, Croatia
- Ministry of Science and Education, Croatia
- Centro de Aplicaciones Tecnologicas y Desarrollo Nuclear (CEADEN), Cubaenergia, Cuba
- Ministry of Education, Youth and Sports of the Czech Republic, Czech Republic
- Danish Council for Independent Research Natural Sciences, Denmark
- Carlsberg Foundation, Denmark
- Danish National Research Foundation (DNRF), Denmark
- Helsinki Institute of Physics (HIP), Finland
- Commissariat a l'Energie Atomique (CEA), France
- Institut National de Physique Nucleaire et de Physique des Particules (IN2P3), France
- Centre National de la Recherche Scientifique (CNRS), France
- Rlegion des Pays de la Loire, France
- Bundesministerium fur Bildung, Wissenschaft, Forschung und Technologie (BMBF), Germany
- GSI Helmholtzzentrum fur Schwerionenforschung GmbH, Germany
- General Secretariat for Research and Technology, Ministry of Education, Research and Religions, Greece
- National Research, Development and Innovation Office, Hungary
- Department of Atomic Energy, Government of India(DAE), India
- Department of Science and Technology, Government of India (DST), India
- University Grants Commission, Government of India (UGC), India
- Council of Scientific and Industrial Research (CSIR), India
- Indonesian Institute of Science, Indonesia
- Centro Fermi Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Italy
- Istituto Nazionale di Fisica Nucleare (INFN), Italy
- Institute for Innovative Science and Technology, Nagasaki Institute of Applied Science (IIST), Japan
- Japan Society for the Promotion of Science (JSPS) KAKENHI, Japan
- Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan
- Consejo Nacional de Ciencia (CONACYT) y Tecnologia, through Fondo de Cooperacion Internacional en Ciencia y Tecnologia (FONCICYT), Mexico
- Direccion General de Asuntos del Personal Academico (DGAPA), Mexico
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands
- Research Council of Norway, Norway
- Commission on Science and Technology for Sustainable Development in the South (COMSATS), Pakistan
- Pontificia Universidad Catolica del Peru, Peru
- Ministry of Science and Higher Education, Poland
- National Science Centre, Poland
- Korea Institute of Science and Technology Information, Republic of Korea
- National Research Foundation of Korea (NRF), Republic of Korea
- Ministry of Education and Scientific Research, Institute of Atomic Physics, Romania
- Institute of Atomic Physics, Romania
- Ministry of Research and Innovation, Romania
- Joint Institute for Nuclear Research (JINR), Russia
- Ministry of Education and Science of the Russian Federation, Russia
- National Research Centre Kurchatov Institute, Russia
- Russian Science Foundation, Russia
- Russian Foundation for Basic Research, Russia
- Ministry of Education, Science, Research and Sport of the Slovak Republic, Slovakia
- National Research Foundation of South Africa, South Africa
- Swedish Research Council (VR), Sweden
- Knut & Alice Wallenberg Foundation (KAW), Sweden
- European Organization for Nuclear Research, Switzerland
- National Science and Technology Development Agency (NSDTA), Thailand
- Suranaree University of Technology (SUT), Thailand
- Office of the Higher Education Commission under NRU project of Thailand, Thailand
- Turkish Atomic Energy Agency (TAEK), Turkey
- National Academy of Sciences of Ukraine, Ukraine
- Science and Technology Facilities Council (STFC), United Kingdom
- National Science Foundation of the United States of America (NSF), United States of America
- United States Department of Energy, Office of Nuclear Physics (DOE NP), United States of America
- World Federation of Scientists (WFS), Armenia
- Science and Technology Facilities Council [2017 STFC Nuclear Physics CG, 1843572] Funding Source: researchfish
- STFC [ST/P005047/1, ST/M00340X/1, ST/P005438/1, ST/M001598/1, ST/P004199/1, ST/L005670/1, ST/N00261X/1, 1963192, 1796881, ST/P004598/1, 1843572, 2017 STFC Nuclear Physics CG, ST/M001601/1, ST/M00158X/1, ALICE] Funding Source: UKRI
The ALICE collaboration performed the first rapidity-differential measurement of coherent J/psi photoproduction in ultra-peripheral Pb-Pbcollisions at a center-of-mass energy root s(NN) = 5.02TeV. The J/psi is detected via its dimuon decay in the forward rapidity region (-4.0 < y < -2.5) for events where the hadronic activity is required to be minimal. The analysis is based on an event sample corresponding to an integrated luminosity of about 750 mu b(-1). The cross section for coherent J/psi production is presented in six rapidity bins. The results are compared with theoretical models for coherent J/psi photoproduction. These comparisons indicate that gluon shadowing effects play a role in the photoproduction process. The ratio of psi' to J/psi coherent photoproduction cross sections was measured and found to be consistent with that measured for photoproduction off protons. (C) 2019 The Author. Published by Elsevier B.V.
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