Journal
PHYSICAL REVIEW C
Volume 106, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.106.034907
Keywords
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Categories
Funding
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation (ANSL), Armenia
- State Committee of Science, Armenia
- World Federation of Scientists (WFS), 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
- Financiadora de Estudos e Projetos (Finep), Brazil
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Brazil
- Universidade Federal do Rio Grande do Sul (UFRGS), Brazil
- Ministry of Education of China (MOEC), China
- Ministry of Science & Technology of China (MSTC), China
- National Natural Science Foundation of China (NSFC), China
- Ministry of Science and Educatio, Croatia
- Croatian Science Foundation, 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
- VILLUM FONDEN, 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
- Cen-tre National de la Recherche Scientifique (CNRS), France
- Bundesministerium fur Bildung und Forschung (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
- Istituto Nazionale di Fisica Nucleare (INFN), Italy
- Institute for Innovative Science and Technology, Japan
- Nagasaki Institute of Applied Science (IIST), Japan
- JapaneseMinistry of Education, Culture, Sports, Science and Technology (MEXT) , Japan
- Japan Society for the Promotion of Science (JSPS) KAKENHI, Japan
- Consejo Nacional de Ciencia (CONACYT) y Tecnologia, through Fondo de Cooperacion Internacional en Ciencia y Tecnologia (FONCICYT)
- 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 Education and Science, Poland
- National Science Centre, Poland
- WUT ID-UB, 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, 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
- Suranaree University of Technology (SUT), Thailand
- National Science and Technology Development Agency (NSDTA), Thailand
- Office of the Higher Education Commission under NRU project of Thailand, Thailand
- Turkish Energy, Nuclear and Mineral Research Agency (TENMAK), 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
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The production of K*(892)(0) and phi(1020) mesons in pp and Pb-Pb collisions have been studied using the ALICE detector at LHC. The transverse momentum distribution and the nuclear modification factors are measured. The suppression of K*(892)(0) signal due to rescattering is observed in Pb-Pb collisions, while no suppression is found for phi(1020) mesons.
The production of K *(892)(0) and phi(1020) mesons in proton-proton (pp) and lead-lead (Pb-Pb) collisions at root s(NN) = 5.02 TeV has been measured using the ALICE detector at the Large Hadron Collider (LHC). The transverse momentum (p(T)) distributions of K*(892)(0) and phi(1020) mesons have been measured at midrapidity (vertical bar y vertical bar < 0.5) up to p(T) = 20 GeV/c in inelastic pp collisions and for several Pb-Pb collision centralities. The collision centrality and collision energy dependence of the average transverse momenta agree with the radial flow scenario observed with stable hadrons, showing that the effect is stronger for more central collisions and higher collision energies. The K*(0)/K ratio is found to be suppressed in Pb-Pb collisions relative to pp collisions: this indicates a loss of the measured K *(892)(0) signal due to rescattering of its decay products in the hadronic phase. In contrast, for the longer-lived phi(1020) mesons, no such suppression is observed. The nuclear modification factors (R-AA) of K*(892)(0) and phi(1020) mesons are calculated using pp reference spectra at the same collision energy. In central Pb-Pb collisions for p(T) > 8 GeV/c, the R-AA values of K *(892)(0) and phi(1020) are below unity and observed to be similar to those of pions, kaons, and (anti)protons. The R-AA values at high pT (>8 GeV/c) for K*(892)0 and f(1020) mesons are in agreement within uncertainties for root s(NN) = 5.02 and 2.76 TeV.
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