期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 9, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP09(2020)160
关键词
Hadron-Hadron scattering (experiments)
资金
- Worldwide LHC Computing Grid (WLCG) collaboration
- 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, Austrian Science Fund (FWF) [M 2467N36]
- Nationalstiftung fur Forschung, Technologie und Entwicklung, Austria
- Ministry of Communications and High Technologies, National Nuclear Research Center, Azerbaijan
- Conselho Nacional de Desenvolvimento Cientifico e Tecnoogico (CNPq)
- Financiadora de Estudos e Projetos (Finep)
- Fundacao de Amparoa Pesquisa do Estado de Sao Paulo (FAPESP)
- Universidade Federal do Rio Grande do Sul (UFRGS), Brazil
- Ministry of Education of China (MOEC)
- Ministry of Science AMP
- Technology of China (MSTC)
- National Natural Science Foundation of China (NSFC), China
- Ministry of Science and Education and Croatian Science Foundation, Croatia
- Centro de Aplicaciones Tecnologicas y Desarrollo Nuclear (CEADEN), Cubaenerga, Cuba
- Ministry of Education, Youth and Sports of the Czech Republic, Czech Republic
- Danish Council for Independent Research \ Natural Sciences
- VILLUM FONDEN
- Danish National Research Foundation (DNRF), Denmark
- Helsinki Institute of Physics (HIP), Finland
- Commissariata l'Energie Atomique (CEA)
- Institut National de Physique Nucleaire et de Physique des Particules (IN2P3)
- Centre National de la Recherche Scientifique (CNRS), France
- Bundesministerium fur Bildung und Forschung (BMBF)
- 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)
- Department of Science and Technology, Government of India (DST), University Grants Commission, Government of India (UGC)
- 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
- Istituto Nazionale di Fisica Nucleare (INFN), Italy
- Institute for Innovative Science and Technology, Nagasaki Institute of Applied Science (IIST), Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT)
- Japan Society for the Promotion of Science (JSPS) KAKENHI, Japan
- Consejo Nacional de Ciencia (CONACYT) y Tecnologa, through Fondo de Cooperacion Internacional en Ciencia y Tecnologa (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 Science and Higher Education, National Science Centre and WUT ID-UB, Poland
- Korea Institute of Science and Technology Information
- National Research Foundation of Korea (NRF), Republic of Korea
- Ministry of Education and Scientific Research, Institute of Atomic Physics
- Ministry of Research and Innovation and Institute of Atomic Physics, Romania
- Joint Institute for Nuclear Research (JINR), Ministry of Education and Science of the Russian Federation
- National Research Centre Kurchatov Institute
- Russian Science Foundation
- 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)
- Knut AMP
- Alice Wallenberg Foundation (KAW), Sweden
- European Organization for Nuclear Research, Switzerland
- Suranaree University of Technology (SUT)
- National Science and Technology Development Agency (NSDTA)
- 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 Department of Energy, Office of Nuclear Physics (DOE NP), United States of America
- Science and Technology Facilities Council [2014 STFC Nuclear Physics CG, 2017 STFC Nuclear Physics CG] Funding Source: researchfish
- STFC [ST/M00158X/1, ST/P005047/1, ST/P005438/1, ST/M001598/1, ST/P004199/1, ST/L005670/1, ST/L005751/1, ST/N00261X/1, ST/P004598/1, 2017 STFC Nuclear Physics CG, ST/M001601/1, 2014 STFC Nuclear Physics CG, ALICE] Funding Source: UKRI
Systematic studies of charge-dependent two- and three-particle correlations in Pb-Pb collisions at root s(NN) = 2.76 and 5.02 TeV used to probe the Chiral Magnetic Effect (CME) are presented. These measurements are performed for charged particles in the pseudorapidity (eta) and transverse momentum (p(T)) ranges |eta| < 0.8 and 0.2 < p(T) < 5 GeV/c. A significant charge-dependent signal that becomes more pronounced for peripheral collisions is reported for the CME-sensitive correlators gamma(1, 1) = < cos(phi(alpha) + phi(beta) - 2 psi(2))> and gamma(1, - 3) = < cos(phi(alpha) - 3 phi(beta) + 2 psi(2))>. The results are used to estimate the contribution of background effects, associated with local charge conservation coupled to anisotropic flow modulations, to measurements of the CME. A blast-wave parametrisation that incorporates local charge conservation tuned to reproduce the centrality dependent background effects is not able to fully describe the measured gamma(1,1). Finally, the charge and centrality dependence of mixed-harmonics three-particle correlations, of the form gamma(1, 2) = < cos(phi(alpha) + 2 phi(beta) - 3 psi(3))>, which are insensitive to the CME signal, verify again that background contributions dominate the measurement of gamma(1,1).
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