Abstract
ϕ meson measurements provide insight into strangeness production, which is one of the key observables for the hot medium formed in high-energy heavy-ion collisions. ALICE measured ϕ production through its decay in muon pairs in Pb–Pb collisions at sNN=2.76 TeV in the intermediate transverse momentum range 2 < pT< 5 GeV/c and in the rapidity interval 2.5 < y< 4. The ϕ yield was measured as a function of the transverse momentum and collision centrality. The nuclear modification factor was obtained as a function of the average number of participating nucleons. Results were compared with the ones obtained via the kaon decay channel in the same pT range at midrapidity. The values of the nuclear modification factor in the two rapidity regions are in agreement within uncertainties.
Original language | English |
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Article number | 559 |
Journal | European Physical Journal C |
Volume | 78 |
Issue number | 7 |
DOIs | |
State | Published - Jul 1 2018 |
Funding
Government of India (DAE), Department of Science and Technology, Government of India (DST), University Grants Commission, Government of India (UGC) and 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 and Istituto Nazionale di Fisica Nucleare (INFN), Italy; Institute for Innovative Science and Technology , Nagasaki Institute of Applied Science (IIST), Japan Society for the Promotion of Science (JSPS) KAKENHI and Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan; Consejo Nacional de Ciencia (CONACYT) y Tecnología, through Fondo de Cooperación Interna-cional en Ciencia y Tecnología (FONCICYT) and Dirección General de Asuntos del Personal Academico (DGAPA), Mexico; Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands; The Research Council of Norway, Norway; Commission on Science and Technology for Sustainable Development in the South (COMSATS), Pakistan; Pontificia Universidad Católica del Perú, Peru; Ministry of Science and Higher Education and National Science Centre, Poland; Korea Institute of Science and Technology Information and National Research Foundation of Korea (NRF), Republic of Korea; Ministry of Education and Scientific Research, Institute of Atomic Physics and Romanian National Agency for Science, Technology and Innovation, Romania; Joint Institute for Nuclear Research (JINR), Ministry of Education and Science of the Russian Federation and National Research Centre Kurchatov Institute, Russia; Ministry of Education, Science, Research and Sport of the Slovak Republic, Slovakia; National Research Foundation of South Africa, South Africa; Centro de Aplicaciones Tec-nológicas y Desarrollo Nuclear (CEADEN), Cubaenergía, Cuba and Centro de Investigaciones Energéticas, Medioambientales y Tecnológ-icas (CIEMAT), Spain; Swedish Research Council (VR) and Knut & Alice Wallenberg Foundation (KAW), Sweden; European Organization for Nuclear Research, Switzerland; National Science and Technology Development Agency (NSDTA), Suranaree University of Technology (SUT) and 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) and United States Department of Energy, Office of Nuclear Physics (DOE NP), United States of America. Acknowledgements The ALICE Collaboration would like to thank all its engineers and technicians for their invaluable contributions to the construction of the experiment and the CERN accelerator teams for the outstanding performance of the LHC complex. The ALICE Collaboration gratefully acknowledges the resources and support provided by all Grid centres and the Worldwide LHC Computing Grid (WLCG) collaboration. The ALICE Collaboration acknowledges the following funding agencies for their support in building and running the ALICE detector: A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation (ANSL), State Committee of Science and World Federation of Scientists (WFS), Armenia; Austrian Academy of Sciences and Nationalstiftung für Forschung, Technologie und Entwicklung, Austria; Ministry of Communications and High Technologies, National Nuclear Research Center, Azerbaijan; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Universidade Federal do Rio Grande do Sul (UFRGS), Financiadora de Estudos e Projetos (Finep) and Fun-dação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Brazil; Ministry of Science & Technology of China (MSTC), National Natural Science Foundation of China (NSFC) and Ministry of Education of China (MOEC) , China; Ministry of Science and Education, Croatia; Ministry of Education, Youth and Sports of the Czech Republic, Czech Republic; The Danish Council for Independent Research | Natural Sciences, the Carlsberg Foundation and Danish National Research Foundation (DNRF), Denmark; Helsinki Institute of Physics (HIP), Finland; Commissariat à l’Energie Atomique (CEA) and Institut National de Physique Nucléaire et de Physique des Particules (IN2P3) and Centre National de la Recherche Scientifique (CNRS), France; Bundesminis-terium für Bildung, Wissenschaft, Forschung und Technologie (BMBF) and GSI Helmholtzzentrum für 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
Funders | Funder number |
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Not added | ST/P004598/1, ST/P005438/1, 1796881, ST/L005670/1, ST/P004199/1, ST/P005047/1, ST/N00261X/1, 1657698, ALICE, ST/M00340X/1, ST/L005751/1, ST/M00158X/1, 1843572 |
Austrian Academy of Sciences and Nationalstiftung für Forschung, Technologie und Entwicklung | |
Centro Fermi-Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi and Istituto Nazionale di Fisica Nucleare | |
Centro de Aplicaciones Tec-nológicas y Desarrollo Nuclear | |
General Secretariat for Research and Technology, Ministry of Education, Research and Religions | |
Helsinki Institute of Physics | |
Institute of Atomic Physics and Romanian National Agency for Science, Technology and Innovation, Romania | |
Ministry of Communications and High Technologies | |
Ministry of Education, Science, Research and Sport | |
Ministry of Education, Youth and Sports of the Czech Republic, Czech Republic | |
NRU | |
National Nuclear Research Center | |
State Committee of Science and World Federation | |
Turkish Atomic Energy Agency | |
University Grants Commission, Government of India | |
Yerevan Physics Institute | |
U.S. Department of Energy | |
Nuclear Physics | |
Natur og Univers, Det Frie Forskningsråd | |
Türkiye Atom Enerjisi Kurumu | |
Ministry of Higher Education and Scientific Research | |
CERN | |
Office of the Higher Education Commission | |
Ministarstvo znanosti i obrazovanja | |
Institute for Innovative Science and Technology, Nagasaki Institute of Applied Science | |
Science and Technology Facilities Council | ST/M001598/1 |
National Research Foundation | |
Department of Science and Technology, Ministry of Science and Technology, India | |
Council of Scientific and Industrial Research, India | |
University Grants Commission | |
Department of Atomic Energy, Government of India | |
Japan Society for the Promotion of Science | 15H03664, 17H01122, 16K17701 |
Ministry of Education, Culture, Sports, Science and Technology | |
Danmarks Grundforskningsfond | |
Fundação de Amparo à Pesquisa do Estado de São Paulo | |
National Natural Science Foundation of China | |
Ministry of Education of the People's Republic of China | |
Bundesministerium für Bildung und Forschung | |
Carlsbergfondet | |
Ministry of Science and Technology of the People's Republic of China | |
Consejo Nacional de Ciencia y Tecnología | |
Nederlandse Organisatie voor Wetenschappelijk Onderzoek | |
Ministry of Education and Science of the Russian Federation | |
Conselho Nacional de Desenvolvimento Científico e Tecnológico | |
Korea Institute of Science and Technology Information | |
National Research Foundation of Korea | |
Joint Institute for Nuclear Research | |
Instituto Nazionale di Fisica Nucleare | |
Knut och Alice Wallenbergs Stiftelse | |
National Science and Technology Development Agency | |
Narodowe Centrum Nauki | |
Suranaree University of Technology | |
Vetenskapsrådet | |
Ministerstwo Edukacji i Nauki | |
National Academy of Sciences of Ukraine | |
Centre National de la Recherche Scientifique | |
Financiadora de Estudos e Projetos | |
Universidade Federal do Rio Grande do Sul | |
Norges Forskningsråd | |
Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México | |
Commissariat à l'Énergie Atomique et aux Énergies Alternatives | |
Fondo de Cooperación Internacional en Ciencia y Tecnología | |
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas | |
Lembaga Ilmu Pengetahuan Indonesia | |
Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie | |
GSI Helmholtzzentrum für Schwerionenforschung | |
Nemzeti Kutatási Fejlesztési és Innovációs Hivatal | |
Institut National de Physique Nucléaire et de Physique des Particules | |
National Research Center "Kurchatov Institute" | |
Indian Institute of Space Science and Technology |