Measurement of prompt and nonprompt charmonium suppression in PbPb collisions at 5.02 TeV

. 2018 ; 78 (6) : 509. [epub] 20180620

Status PubMed-not-MEDLINE Jazyk angličtina Země Francie Médium print-electronic

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/pmid30956556

The nuclear modification factors of J / ψ and ψ (2S) mesons are measured in PbPb collisions at a centre-of-mass energy per nucleon pair of s NN = 5.02 TeV . The analysis is based on PbPb and p p data samples collected by CMS at the LHC in 2015, corresponding to integrated luminosities of 464 μ b - 1 and 28 pb -1 , respectively. The measurements are performed in the dimuon rapidity range of | y | < 2.4 as a function of centrality, rapidity, and transverse momentum ( p T ) from p T = 3 GeV / c in the most forward region and up to 50 GeV / c . Both prompt and nonprompt (coming from b hadron decays) J / ψ mesons are observed to be increasingly suppressed with centrality, with a magnitude similar to the one observed at s NN = 2.76 TeV for the two J / ψ meson components. No dependence on rapidity is observed for either prompt or nonprompt J / ψ mesons. An indication of a lower prompt J / ψ meson suppression at p T > 25 GeV / c is seen with respect to that observed at intermediate p T . The prompt ψ (2S) meson yield is found to be more suppressed than that of the prompt J / ψ mesons in the entire p T range.

Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics Cairo Egypt

Baylor University Waco USA

Beihang University Beijing China

Benemerita Universidad Autonoma de Puebla Puebla Mexico

Bhabha Atomic Research Centre Mumbai India

Bogazici University Istanbul Turkey

Boston University Boston USA

Brown University Providence USA

Brunel University Uxbridge UK

California Institute of Technology Pasadena USA

Carnegie Mellon University Pittsburgh USA

Catholic University of America Washington DC USA

Centre de Calcul de l'Institut National de Physique Nucleaire et de Physique des Particules CNRS IN2P3 Villeurbanne France

Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil

Centro de Investigacion y de Estudios Avanzados del IPN Mexico City Mexico

Centro de Investigaciones Energéticas Medioambientales y Tecnológicas Madrid Spain

CERN European Organization for Nuclear Research Geneva Switzerland

Charles University Prague Czech Republic

Chonbuk National University Jeonju Korea

Chonnam National University Institute for Universe and Elementary Particles Kwangju Korea

Cornell University Ithaca USA

Department of Physics Faculty of Science Chulalongkorn University Bangkok Thailand

Department of Physics University of California Santa Barbara Santa Barbara USA

Department of Physics University of Helsinki Helsinki Finland

Deutsches Elektronen Synchrotron Hamburg Germany

ETH Zurich Institute for Particle Physics and Astrophysics Zurich Switzerland

Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture University of Split Split Croatia

Faculty of Science University of Split Split Croatia

Fermi National Accelerator Laboratory Batavia USA

Florida Institute of Technology Melbourne USA

Florida International University Miami USA

Florida State University Tallahassee USA

Georgian Technical University Tbilisi Georgia

Ghent University Ghent Belgium

Hanyang University Seoul Korea

Helsinki Institute of Physics Helsinki Finland

Imperial College London UK

Indian Institute of Science Bangalore India

Indian Institute of Science Education and Research Pune India

Indian Institute of Technology Madras Madras India

INFN Laboratori Nazionali di Frascati Frascati Italy

INFN Sezione di Bari Università di Bari Politecnico di Bari Bari Italy

INFN Sezione di Bologna Università di Bologna Bologna Italy

INFN Sezione di Catania Università di Catania Catania Italy

INFN Sezione di Firenze Università di Firenze Firenze Italy

INFN Sezione di Genova Università di Genova Genoa Italy

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INFN Sezione di Pisa Università di Pisa Scuola Normale Superiore di Pisa Pisa Italy

INFN Sezione di Roma Sapienza Università di Roma Rome Italy

INFN Sezione di Torino Università di Torino Turin Italy Università del Piemonte Orientale Novara Italy

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Institut für Experimentelle Kernphysik Karlsruhe Germany

Institut für Hochenergiephysik Wien Austria

Institute for Nuclear Problems Minsk Belarus

Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria

Institute for Nuclear Research Moscow Russia

Institute for Research in Fundamental Sciences Tehran Iran

Institute for Scintillation Materials National Academy of Science of Ukraine Kharkov Ukraine

Institute for Theoretical and Experimental Physics Moscow Russia

Institute of Experimental Physics Faculty of Physics University of Warsaw Warsaw Poland

Institute of High Energy Physics Beijing China

Institute of Nuclear and Particle Physics NCSR Demokritos Aghia Paraskevi Greece

Institute of Nuclear Research ATOMKI Debrecen Hungary

Institute of Physics University of Debrecen Debrecen Hungary

Institute Rudjer Boskovic Zagreb Croatia

Instituto de Física de Cantabria CSIC Universidad de Cantabria Santander Spain

IRFU CEA Université Paris Saclay Gif sur Yvette France

Istanbul Technical University Istanbul Turkey

Johns Hopkins University Baltimore USA

Joint Institute for Nuclear Research Dubna Russia

Kansas State University Manhattan USA

Korea University Seoul Korea

Kyungpook National University Daegu Korea

Laboratoire Leprince Ringuet Ecole polytechnique CNRS IN2P3 Université Paris Saclay Palaiseau France

Laboratório de Instrumentação e Física Experimental de Partículas Lisboa Portugal

Lappeenranta University of Technology Lappeenranta Finland

Lawrence Livermore National Laboratory Livermore USA

Massachusetts Institute of Technology Cambridge USA

Moscow Institute of Physics and Technology Moscow Russia

MTA ELTE Lendület CMS Particle and Nuclear Physics Group Eötvös Loránd University Budapest Hungary

National and Kapodistrian University of Athens Athens Greece

National Central University Chung Li Taiwan

National Centre for Nuclear Research Swierk Poland

National Centre for Particle Physics Universiti Malaya Kuala Lumpur Malaysia

National Centre for Physics Quaid 1 Azam University Islamabad Pakistan

National Institute of Chemical Physics and Biophysics Tallinn Estonia

National Institute of Science Education and Research Bhubaneswar India

National Research Nuclear University 'Moscow Engineering Physics Institute' Moscow Russia

National Scientific Center Kharkov Institute of Physics and Technology Kharkov Ukraine

National Taiwan University Taipei Taiwan

National Technical University of Athens Athens Greece

Northeastern University Boston USA

Northwestern University Evanston USA

Novosibirsk State University Novosibirsk Russia

P N Lebedev Physical Institute Moscow Russia

Panjab University Chandigarh India

Paul Scherrer Institut Villigen Switzerland

Petersburg Nuclear Physics Institute Gatchina Russia

Physics Department Middle East Technical University Ankara Turkey

Physics Department Science and Art Faculty Çukurova University Adana Turkey

Princeton University Princeton USA

Purdue University Northwest Hammond USA

Purdue University West Lafayette USA

Rice University Houston USA

Rutgers The State University of New Jersey Piscataway USA

Rutherford Appleton Laboratory Didcot UK

RWTH Aachen University 1 Physikalisches Institut Aachen Germany

RWTH Aachen University 3 Physikalisches Institut A Aachen Germany

RWTH Aachen University 3 Physikalisches Institut B Aachen Germany

Saha Institute of Nuclear Physics HBNI Kolkata India

Seoul National University Seoul Korea

Skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State University Moscow Russia

State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China

State Research Center of Russian Federation Institute for High Energy Physics of NRC and quot;Kurchatov Institute and quot; Protvino Russia

State University of New York at Buffalo Buffalo USA

Sungkyunkwan University Suwon Korea

Tata Institute of Fundamental Research A Mumbai India

Tata Institute of Fundamental Research B Mumbai India

Tbilisi State University Tbilisi Georgia

Texas A and M University College Station USA

Texas Tech University Lubbock USA

The Ohio State University Columbus USA

The Rockefeller University New York USA

The University of Alabama Tuscaloosa USA

The University of Iowa Iowa City USA

The University of Kansas Lawrence USA

Tsinghua University Beijing China

Universidad Autónoma de Madrid Madrid Spain

Universidad Autónoma de San Luis Potosí San Luis Potosí Mexico

Universidad de Los Andes Bogota Colombia

Universidad de Oviedo Oviedo Spain

Universidad Iberoamericana Mexico City Mexico

Universidad San Francisco de Quito Quito Ecuador

Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil

Universidade Estadual Paulista Universidade Federal do ABC São Paulo Brazil

Universität Zürich Zurich Switzerland

Université Catholique de Louvain Louvain la Neuve Belgium

Université de Lyon Université Claude Bernard Lyon 1 CNRS IN2P3 Institut de Physique Nucléaire de Lyon Villeurbanne France

Université de Strasbourg CNRS IPHC UMR 7178 67000 Strasbourg France

Université Libre de Bruxelles Bruxelles Belgium

Universiteit Antwerpen Antwerpen Belgium

University College Dublin Dublin Ireland

University of Auckland Auckland New Zealand

University of Belgrade Faculty of Physics and Vinca Institute of Nuclear Sciences Belgrade Serbia

University of Bristol Bristol UK

University of California Davis Davis USA

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University of Colorado Boulder Boulder USA

University of Cyprus Nicosia Cyprus

University of Delhi Delhi India

University of Florida Gainesville USA

University of Hamburg Hamburg Germany

University of Illinois at Chicago Chicago USA

University of Ioánnina Ioánnina Greece

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Yerevan Physics Institute Yerevan Armenia

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