https://doi.org/10.1140/epjc/s10052-023-11427-9
Regular Article - Experimental Physics
Measurement of the nuclear modification factor of b-jets in 5.02 TeV Pb+Pb collisions with the ATLAS detector
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Department of Physics, University of Adelaide, Adelaide, Australia
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Department of Physics, University of Alberta, Edmonton, AB, Canada
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Department of Physics, Ankara University, Ankara, Türkiye
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Division of Physics, TOBB University of Economics and Technology, Ankara, Türkiye
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LAPP, Univ. Savoie Mont Blanc, CNRS/IN2P3, Annecy, France
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APC, Université Paris Cité, CNRS/IN2P3, Paris, France
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High Energy Physics Division, Argonne National Laboratory, Argonne, IL, USA
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Department of Physics, University of Arizona, Tucson, AZ, USA
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Department of Physics, University of Texas at Arlington, Arlington, TX, USA
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Physics Department, National and Kapodistrian University of Athens, Athens, Greece
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Physics Department, National Technical University of Athens, Zografou, Greece
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Department of Physics, University of Texas at Austin, Austin, TX, USA
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Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan
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Institut de Física d’Altes Energies (IFAE), Barcelona Institute of Science and Technology, Barcelona, Spain
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Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China
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Physics Department, Tsinghua University, Beijing, China
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Department of Physics, Nanjing University, Nanjing, China
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University of Chinese Academy of Science (UCAS), Beijing, China
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Institute of Physics, University of Belgrade, Belgrade, Serbia
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Department for Physics and Technology, University of Bergen, Bergen, Norway
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Physics Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
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University of California, Berkeley, CA, USA
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Institut für Physik, Humboldt Universität zu Berlin, Berlin, Germany
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Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern, Switzerland
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School of Physics and Astronomy, University of Birmingham, Birmingham, UK
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Department of Physics, Bogazici University, Istanbul, Türkiye
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Department of Physics Engineering, Gaziantep University, Gaziantep, Türkiye
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Department of Physics, Istanbul University, Istanbul, Türkiye
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Istinye University, Sariyer, Istanbul, Türkiye
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Facultad de Ciencias y Centro de Investigaciónes, Universidad Antonio Nariño, Bogotá, Colombia
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Departamento de Física, Universidad Nacional de Colombia, Bogotá, Colombia
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Dipartimento di Fisica e Astronomia A. Righi, Università di Bologna, Bologna, Italy
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INFN Sezione di Bologna, Bologna, Italy
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Physikalisches Institut, Universität Bonn, Bonn, Germany
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Department of Physics, Boston University, Boston, MA, USA
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Department of Physics, Brandeis University, Waltham, MA, USA
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Transilvania University of Brasov, Brasov, Romania
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Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, Romania
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Department of Physics, Alexandru Ioan Cuza University of Iasi, Iasi, Romania
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Physics Department, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
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University Politehnica Bucharest, Bucharest, Romania
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West University in Timisoara, Timisoara, Romania
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Faculty of Mathematics, Physics and Informatics, Comenius University, Bratislava, Slovak Republic
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Department of Subnuclear Physics, Institute of Experimental Physics of the Slovak Academy of Sciences, Kosice, Slovak Republic
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Physics Department, Brookhaven National Laboratory, Upton, NY, USA
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Departamento de Física, y CONICET, Facultad de Ciencias Exactas y Naturales, Instituto de Física de Buenos Aires (IFIBA), Universidad de Buenos Aires, Buenos Aires, Argentina
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California State University, CA, USA
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Cavendish Laboratory, University of Cambridge, Cambridge, UK
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Department of Physics, University of Cape Town, Cape Town, South Africa
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iThemba Labs, Western Cape, South Africa
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Department of Mechanical Engineering Science, University of Johannesburg, Johannesburg, South Africa
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National Institute of Physics, University of the Philippines, Diliman, Philippines
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Department of Physics, University of South Africa, Pretoria, South Africa
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University of Zululand, KwaDlangezwa, South Africa
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School of Physics, University of the Witwatersrand, Johannesburg, South Africa
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Department of Physics, Carleton University, Ottawa, ON, Canada
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Faculté des Sciences Ain Chock, Réseau Universitaire de Physique des Hautes Energies, Université Hassan II, Casablanca, Morocco
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Faculté des Sciences, Université Ibn-Tofail, Kénitra, Morocco
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Faculté des Sciences Semlalia, Université Cadi Ayyad, LPHEA-Marrakech, Morocco
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LPMR, Faculté des Sciences, Université Mohamed Premier, Oujda, Morocco
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Faculté des sciences, Université Mohammed V, Rabat, Morocco
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Institute of Applied Physics, Mohammed VI Polytechnic University, Ben Guerir, Morocco
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CERN, Geneva, Switzerland
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Affiliated with an institute covered by a cooperation agreement with CERN, Geneva, Switzerland
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Affiliated with an international laboratory covered by a cooperation agreement with CERN, Geneva, Switzerland
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Enrico Fermi Institute, University of Chicago, Chicago, IL, USA
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LPC, Université Clermont Auvergne, CNRS/IN2P3, Clermont-Ferrand, France
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Nevis Laboratory, Columbia University, Irvington, NY, USA
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Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
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Dipartimento di Fisica, Università della Calabria, Rende, Italy
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INFN Gruppo Collegato di Cosenza, Laboratori Nazionali di Frascati, Frascati, Italy
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Physics Department, Southern Methodist University, Dallas, TX, USA
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Physics Department, University of Texas at Dallas, Richardson, TX, USA
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National Centre for Scientific Research “Demokritos”, Agia Paraskevi, Greece
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Department of Physics, Stockholm University, Stockholm, Sweden
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Oskar Klein Centre, Stockholm, Sweden
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Deutsches Elektronen-Synchrotron DESY, Hamburg and Zeuthen, Germany
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Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
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Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
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Department of Physics, Duke University, Durham, NC, USA
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SUPA-School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK
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INFN e Laboratori Nazionali di Frascati, Frascati, Italy
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Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
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II. Physikalisches Institut, Georg-August-Universität Göttingen, Göttingen, Germany
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Département de Physique Nucléaire et Corpusculaire, Université de Genève, Geneva, Switzerland
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Dipartimento di Fisica, Università di Genova, Genoa, Italy
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INFN Sezione di Genova, Genoa, Italy
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II. Physikalisches Institut, Justus-Liebig-Universität Giessen, Giessen, Germany
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SUPA-School of Physics and Astronomy, University of Glasgow, Glasgow, UK
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LPSC, Université Grenoble Alpes, CNRS/IN2P3, Grenoble INP, Grenoble, France
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Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, MA, USA
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Department of Modern Physics and State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, China
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Institute of Frontier and Interdisciplinary Science and Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Qingdao, China
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School of Physics and Astronomy, Shanghai Jiao Tong University, Key Laboratory for Particle Astrophysics and Cosmology (MOE), SKLPPC, Shanghai, China
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Tsung-Dao Lee Institute, Shanghai, China
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Kirchhoff-Institut für Physik, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
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Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
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Department of Physics, Chinese University of Hong Kong, Shatin, N.T., Hong Kong
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Department of Physics, University of Hong Kong, Pok Fu Lam, Hong Kong
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Department of Physics and Institute for Advanced Study, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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Department of Physics, National Tsing Hua University, Hsinchu, Taiwan
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IJCLab, Université Paris-Saclay, CNRS/IN2P3, 91405, Orsay, France
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Department of Physics, Indiana University, Bloomington, IN, USA
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INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy
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ICTP, Trieste, Italy
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Dipartimento Politecnico di Ingegneria e Architettura, Università di Udine, Udine, Italy
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INFN Sezione di Lecce, Lecce, Italy
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Dipartimento di Matematica e Fisica, Università del Salento, Lecce, Italy
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INFN Sezione di Milano, Milan, Italy
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Dipartimento di Fisica, Università di Milano, Milan, Italy
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INFN Sezione di Napoli, Naples, Italy
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Dipartimento di Fisica, Università di Napoli, Naples, Italy
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INFN Sezione di Pavia, Pavia, Italy
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Dipartimento di Fisica, Università di Pavia, Pavia, Italy
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INFN Sezione di Pisa, Pisa, Italy
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Dipartimento di Fisica E. Fermi, Università di Pisa, Pisa, Italy
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INFN Sezione di Roma, Rome, Italy
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Dipartimento di Fisica, Sapienza Università di Roma, Rome, Italy
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INFN Sezione di Roma Tor Vergata, Rome, Italy
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Dipartimento di Fisica, Università di Roma Tor Vergata, Rome, Italy
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INFN Sezione di Roma Tre, Rome, Italy
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Dipartimento di Matematica e Fisica, Università Roma Tre, Rome, Italy
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INFN-TIFPA, Povo, Italy
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Università degli Studi di Trento, Trento, Italy
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Department of Astro and Particle Physics, Universität Innsbruck, Innsbruck, Austria
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University of Iowa, Iowa City, IA, USA
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Department of Physics and Astronomy, Iowa State University, Ames, IA, USA
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Departamento de Engenharia Elétrica, Universidade Federal de Juiz de Fora (UFJF), Juiz de Fora, Brazil
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Universidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro, Brazil
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Instituto de Física, Universidade de São Paulo, São Paulo, Brazil
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Rio de Janeiro State University, Rio de Janeiro, Brazil
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KEK, High Energy Accelerator Research Organization, Tsukuba, Japan
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Graduate School of Science, Kobe University, Kobe, Japan
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Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Kraków, Poland
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Marian Smoluchowski Institute of Physics, Jagiellonian University, Kraków, Poland
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Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
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Faculty of Science, Kyoto University, Kyoto, Japan
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Kyoto University of Education, Kyoto, Japan
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Research Center for Advanced Particle Physics and Department of Physics, Kyushu University, Fukuoka, Japan
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Instituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, Argentina
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Physics Department, Lancaster University, Lancaster, UK
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Oliver Lodge Laboratory, University of Liverpool, Liverpool, UK
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Department of Experimental Particle Physics, Jožef Stefan Institute and Department of Physics, University of Ljubljana, Ljubljana, Slovenia
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School of Physics and Astronomy, Queen Mary University of London, London, UK
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Department of Physics, Royal Holloway University of London, Egham, UK
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Department of Physics and Astronomy, University College London, London, UK
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Louisiana Tech University, Ruston, LA, USA
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Fysiska institutionen, Lunds universitet, Lund, Sweden
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Departamento de Física Teorica C-15 and CIAFF, Universidad Autónoma de Madrid, Madrid, Spain
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Institut für Physik, Universität Mainz, Mainz, Germany
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School of Physics and Astronomy, University of Manchester, Manchester, UK
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CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France
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Department of Physics, University of Massachusetts, Amherst, MA, USA
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Department of Physics, McGill University, Montreal, QC, Canada
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School of Physics, University of Melbourne, Victoria, Australia
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Department of Physics, University of Michigan, Ann Arbor, MI, USA
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Department of Physics and Astronomy, Michigan State University, East Lansing, MI, USA
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Group of Particle Physics, University of Montreal, Montreal, QC, Canada
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Fakultät für Physik, Ludwig-Maximilians-Universität München, Munich, Germany
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Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), Munich, Germany
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Graduate School of Science and Kobayashi-Maskawa Institute, Nagoya University, Nagoya, Japan
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Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM, USA
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Institute for Mathematics, Astrophysics and Particle Physics, Radboud University/Nikhef, Nijmegen, The Netherlands
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Nikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam, The Netherlands
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Department of Physics, Northern Illinois University, DeKalb, IL, USA
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New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
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United Arab Emirates University, Al Ain, United Arab Emirates
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University of Sharjah, Sharjah, United Arab Emirates
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Department of Physics, New York University, New York, NY, USA
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Ochanomizu University, Otsuka, Bunkyo-ku, Tokyo, Japan
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Ohio State University, Columbus, OH, USA
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Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK, USA
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Department of Physics, Oklahoma State University, Stillwater, OK, USA
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Joint Laboratory of Optics, Palacký University, Olomouc, Czech Republic
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Institute for Fundamental Science, University of Oregon, Eugene, OR, USA
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Graduate School of Science, Osaka University, Osaka, Japan
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Department of Physics, University of Oslo, Oslo, Norway
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Department of Physics, Oxford University, Oxford, UK
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LPNHE, Sorbonne Université, Université Paris Cité, CNRS/IN2P3, Paris, France
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Department of Physics, University of Pennsylvania, Philadelphia, PA, USA
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Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA, USA
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Laboratório de Instrumentação e Física Experimental de Partículas-LIP, Lisbon, Portugal
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Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
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Departamento de Física, Universidade de Coimbra, Coimbra, Portugal
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Centro de Física Nuclear da Universidade de Lisboa, Lisbon, Portugal
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Departamento de Física, Universidade do Minho, Braga, Portugal
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Departamento de Física Teórica y del Cosmos, Universidad de Granada, Granada, Spain
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Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
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Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
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Czech Technical University in Prague, Prague, Czech Republic
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Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
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Particle Physics Department, Rutherford Appleton Laboratory, Didcot, UK
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IRFU, CEA, Université Paris-Saclay, Gif-sur-Yvette, France
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Santa Cruz Institute for Particle Physics, University of California Santa Cruz, Santa Cruz, CA, USA
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Departamento de Física, Pontificia Universidad Católica de Chile, Santiago, Chile
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Millennium Institute for Subatomic physics at high energy frontier (SAPHIR), Santiago, Chile
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Instituto de Investigación Multidisciplinario en Ciencia y Tecnología y Departamento de Física, Universidad de La Serena, La Serena, Chile
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Department of Physics, Universidad Andres Bello, Santiago, Chile
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Instituto de Alta Investigación, Universidad de Tarapacá, Arica, Chile
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Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile
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Department of Physics, University of Washington, Seattle, WA, USA
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Department of Physics and Astronomy, University of Sheffield, Sheffield, UK
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Department of Physics, Shinshu University, Nagano, Japan
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Department Physik, Universität Siegen, Siegen, Germany
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Department of Physics, Simon Fraser University, Burnaby, BC, Canada
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SLAC National Accelerator Laboratory, Stanford, CA, USA
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Department of Physics, Royal Institute of Technology, Stockholm, Sweden
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Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY, USA
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Department of Physics and Astronomy, University of Sussex, Brighton, UK
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School of Physics, University of Sydney, Sydney, Australia
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Institute of Physics, Academia Sinica, Taipei, Taiwan
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E. Andronikashvili Institute of Physics, Iv. Javakhishvili Tbilisi State University, Tbilisi, Georgia
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High Energy Physics Institute, Tbilisi State University, Tbilisi, Georgia
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University of Georgia, Tbilisi, Georgia
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Department of Physics, Technion, Israel Institute of Technology, Haifa, Israel
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Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel
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Department of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece
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International Center for Elementary Particle Physics and Department of Physics, University of Tokyo, Tokyo, Japan
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Department of Physics, Tokyo Institute of Technology, Tokyo, Japan
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Department of Physics, University of Toronto, Toronto, ON, Canada
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TRIUMF, Vancouver, BC, Canada
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Department of Physics and Astronomy, York University, Toronto, ON, Canada
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Division of Physics and Tomonaga Center for the History of the Universe, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan
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Department of Physics and Astronomy, Tufts University, Medford, MA, USA
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Department of Physics and Astronomy, University of California Irvine, Irvine, CA, USA
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Department of Physics and Astronomy, University of Uppsala, Uppsala, Sweden
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Department of Physics, University of Illinois, Urbana, IL, USA
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Instituto de Física Corpuscular (IFIC), Centro Mixto Universidad de Valencia-CSIC, Valencia, Spain
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Department of Physics, University of British Columbia, Vancouver, BC, Canada
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Department of Physics and Astronomy, University of Victoria, Victoria, BC, Canada
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Fakultät für Physik und Astronomie, Julius-Maximilians-Universität Würzburg, Würzburg, Germany
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Department of Physics, University of Warwick, Coventry, UK
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Waseda University, Tokyo, Japan
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Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot, Israel
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Department of Physics, University of Wisconsin, Madison, WI, USA
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Fakultät für Mathematik und Naturwissenschaften, Fachgruppe Physik, Bergische Universität Wuppertal, Wuppertal, Germany
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Department of Physics, Yale University, New Haven, CT, USA
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Institute covered by a cooperation agreement with CERN., Geneva, Switzerland
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Borough of Manhattan Community College, City University of New York, New York, NY, USA
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Bruno Kessler Foundation, Trento, Italy
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Center for High Energy Physics, Peking University, Beijing, China
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Centro Studi e Ricerche Enrico Fermi, Rome, Italy
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CERN, Geneva, Switzerland
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Département de Physique Nucléaire et Corpusculaire, Université de Genève, Geneva, Switzerland
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Departament de Fisica de la Universitat Autonoma de Barcelona, Barcelona, Spain
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Department of Financial and Management Engineering, University of the Aegean, Chios, Greece
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Department of Physics and Astronomy, Michigan State University, East Lansing, MI, USA
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Department of Physics and Astronomy, University of Louisville, Louisville, KY, USA
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Department of Physics, Ben Gurion University of the Negev, Beer Sheva, Israel
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Department of Physics, California State University, East Bay, USA
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Department of Physics, California State University, Sacramento, USA
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Department of Physics, King’s College London, London, UK
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Department of Physics, University of Fribourg, Fribourg, Switzerland
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Department of Physics, University of Thessaly, Thessaly, Greece
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Department of Physics, Westmont College, Santa Barbara, USA
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Hellenic Open University, Patras, Greece
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Institucio Catalana de Recerca i Estudis Avancats, ICREA, Barcelona, Spain
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Institut für Experimentalphysik, Universität Hamburg, Hamburg, Germany
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Institute of Particle Physics (IPP), Toronto, Canada
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Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan
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Institute of Theoretical Physics, Ilia State University, Tbilisi, Georgia
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Lawrence Livermore National Laboratory, Livermore, USA
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Physics Department, An-Najah National University, Nablus, Palestine
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The City College of New York, New York, NY, USA
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The Collaborative Innovation Center of Quantum Matter (CICQM), Beijing, China
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TRIUMF, Vancouver, BC, Canada
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Università di Napoli Parthenope, Naples, Italy
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University of Chinese Academy of Sciences (UCAS), Beijing, China
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Department of Physics, University of Colorado Boulder, Colorado, USA
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Yeditepe University, Physics Department, Istanbul, Türkiye
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CERN, 1211, Geneva 23, Switzerland
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Received:
29
April
2022
Accepted:
9
August
2022
Published online:
25
May
2023
This paper presents a measurement of b-jet production in Pb+Pb and pp collisions at 
TeV with the ATLAS detector at the LHC. The measurement uses 260 
of pp collisions collected in 2017 and 1.4 
of Pb+Pb collisions collected in 2018. In both collision systems, jets are reconstructed via the anti-
algorithm. The b-jets are identified from a sample of jets containing muons from the semileptonic decay of b-quarks using template fits of the muon momentum relative to the jet axis. In pp collisions, b-jets are reconstructed for radius parameters 
and 
, and only jets are used in Pb+Pb collisions. For comparison, inclusive jets are also measured using 1.7 of Pb+Pb collisions collected in 2018 and the same pp collision data as the b-jet measurement. The nuclear modification factor, 
, is calculated for both b-jets and inclusive jets with over the transverse momentum range of 80–290 GeV. The nuclear modification factor for b-jets decreases from peripheral to central collisions. The ratio of the b-jet to inclusive jet is also presented and suggests that the for b-jets is larger than that for inclusive jets in central Pb+Pb collisions. The measurements are compared with theoretical calculations and suggest a role for mass and colour-charge effects in partonic energy loss in heavy-ion collisions.
© CERN for the benefit of the ATLAS collaboration 2023
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Funded by SCOAP3. SCOAP3 supports the goals of the International Year of Basic Sciences for Sustainable Development.
