期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 10, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP10(2018)061
关键词
Heavy Ion 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 and 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), Universidade Federal do Rio Grande do Sul (UFRGS), Financiadora de Estudos e Projetos (Finep) and Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Brazil
- Ministry of Science AMP
- 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
- Danish Council for Independent Research | Natural Sciences, the Carlsberg Foundation and Danish National Research Foundation (DNRF), Denmark
- Helsinki Institute of Physics (HIP), Finland
- Commissariata l'Energie Atomique (CEA) and Institut National de Physique Nucleaire et de Physique des Particules (IN2P3) and Centre National de la Recherche Scientifique (CNRS), France
- Bundesministerium fur Bildung, Wissenschaft, Forschung und Technologie (BMBF) and 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) 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 Tecnologia, through Fondo de Cooperacion Internacional en Ciencia y Tecnologia (FONCICYT) and 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 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 Tecnologicas y Desarrollo Nuclear (CEADEN), Cubaenergia, Cuba and Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas (CIEMAT), Spain
- Swedish Research Council (VR) and Knut AMP
- 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
- STFC [ALICE, ST/M00158X/1, ST/P005047/1, ST/M00340X/1, ST/P005438/1, ST/M001598/1, ST/P004199/1, ST/L005670/1, ST/L005751/1, ST/N00261X/1, 1963192, 1796881, ST/P004598/1, 1843572, 2017 STFC Nuclear Physics CG, ST/J000108/1, ST/M001601/1, 1657698] Funding Source: UKRI
- Science and Technology Facilities Council [ST/P004598/1, 2017 STFC Nuclear Physics CG, 1796881, 1843572, ST/M001598/1, ST/P005438/1, ST/L005670/1] Funding Source: researchfish
Transverse-momentum (p(T)) differential yields of electrons from semileptonic heavy-flavour hadron decays have been measured in the most central (0-10%) and in semi-central (20-40%) Pb-Pb collisions at TeV. The corresponding production cross section in pp collisions has been measured at the same energy with substantially reduced systematic uncertainties with respect to previously published results. The modification of the yield in Pb-Pb collisions with respect to the expectation from an incoherent superposition of nucleon-nucleon collisions is quantified at mid-rapidity (|y| < 0.8) in the p(T) interval 0.5-3 GeV/c via the nuclear modification factor, R-AA. This paper extends the p(T) reach of the R-AA measurement towards significantly lower values with respect to a previous publication. In Pb-Pb collisions the p(T)-differential measurements of yields at low p(T) are essential to investigate the scaling of heavy-flavour production with the number of binary nucleon-nucleon collisions. Heavy-quark hadronization, a collective expansion and even initial-state effects, such as the nuclear modification of the Parton Distribution Function, are also expected to have a significant effect on the measured distribution.
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