Production of inclusive ϒ(1S) and ϒ(2S) in p–Pb collisions at √sNN=5.02 TeV

ALICE Collaboration

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Abstract

We report on the production of inclusive ϒ(1S) and ϒ(2S) in p–Pb collisions at sNN=5.02 TeV at the LHC. The measurement is performed with the ALICE detector at backward (−4.46<ycms<−2.96) and forward (2.03<ycms<3.53) rapidity down to zero transverse momentum. The production cross sections of the ϒ(1S) and ϒ(2S) are presented, as well as the nuclear modification factor and the ratio of the forward to backward yields of ϒ(1S). A suppression of the inclusive ϒ(1S) yield in p–Pb collisions with respect to the yield from pp collisions scaled by the number of binary nucleon–nucleon collisions is observed at forward rapidity but not at backward rapidity. The results are compared to theoretical model calculations including nuclear shadowing or partonic energy loss effects.

Original languageEnglish
Pages (from-to)105-117
Number of pages13
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume740
DOIs
Publication statusPublished - 2015 Jan 5

Bibliographical note

Funding Information:
The ALICE Collaboration acknowledges the following funding agencies for their support in building and running the ALICE detector: State Committee of Science , World Federation of Scientists (WFS) and Swiss Fonds Kidagan , Armenia, Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) , Financiadora de Estudos e Projetos (FINEP), Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); National Natural Science Foundation of China (NSFC), the Chinese Ministry of Education (CMOE) and Ministry of Science and Technology of the People's Republic of China (MSTC); Ministry of Education and Youth of the Czech Republic ; Danish Natural Science Research Council , the Carlsberg Foundation and the Danish National Research Foundation ; The European Research Council under the European Community's Seventh Framework Programme ; Helsinki Institute of Physics and the Academy of Finland ; French CNRS-IN2P3 , the ‘ Region Pays de Loire ’, ‘ Region Alsace ’, ‘ Region Auvergne ’ and CEA , France; German BMBF and the Helmholtz Association ; General Secretariat for Research and Technology , Ministry of Development, Greece; Hungarian OTKA and National Office for Research and Technology (NKTH); Department of Atomic Energy, Government of India and Department of Science and Technology, Ministry of Science and Technology of the Government of India; Istituto Nazionale di Fisica Nucleare (INFN) and Centro Fermi – Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi” , Italy; MEXT Grant-in-Aid for Specially Promoted Research, Japan; Joint Institute for Nuclear Research , Dubna; National Research Foundation of Korea (NRF); CONACYT , DGAPA , México, ALFA-EC and the EPLANET Program ( European Particle Physics Latin American Network ); Stichting voor Fundamenteel Onderzoek der Materie (FOM) and the Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands; Research Council of Norway (NFR); Polish Ministry of Science and Higher Education ; National Science Centre , Poland; Ministry of National Education/Institute for Atomic Physics and CNCS-UEFISCDI , Romania; Ministry of Education and Science of Russian Federation , Russian Academy of Sciences , Russian Federal Agency of Atomic Energy , Russian Federal Agency for Science and Innovations and the Russian Foundation for Basic Research ; Ministry of Education of Slovakia ; Department of Science and Technology, Republic of South Africa ; CIEMAT , EELA , Ministerio de Economía y Competitividad (MINECO) of Spain, Xunta de Galicia (Consellería de Educación), CEADEN , Cubaenergía , Cuba, and IAEA ( International Atomic Energy Agency ); Swedish Research Council (VR) and Knut and Alice Wallenberg Foundation (KAW); Ukraine Ministry of Education and Science ; United Kingdom Science and Technology Facilities Council (STFC); The U.S. Department of Energy , the United States National Science Foundation , the State of Texas , and the State of Ohio ; Ministry of Science, Education and Sports of Croatia and Unity through Knowledge Fund , Croatia.

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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