Medium-induced modification of Z-tagged charged particle yields in Pb+Pb collisions at 5.02 TeV with the ATLAS detector

作     者：Aad, G. Abbott, B. Abbott, D.C. Abed Abud, A. Abeling, K. Abhayasinghe, D.K. Abidi, S.H. AbouZeid, O.S. Abraham, N.L. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B.S. Achkar, B. Adam, L. Adam Bourdarios, C. Adamczyk, L. Adamek, L. Adelman, J. Adersberger, M. Adiguzel, A. Adorni, S. Adye, T. Affolder, A.A. Afik, Y. Agapopoulou, C. Agaras, M.N. Aggarwal, A. Agheorghiesei, C. Aguilar-Saavedra, J.A. Ahmad, A. Ahmadov, F. Ahmed, W.S. Ai, X. Aielli, G. Akatsuka, S. Akbiyik, M. Åkesson, T.P.A. Akilli, E. Akimov, A.V. Al Khoury, K. Alberghi, G.L. Albert, J. Alconada Verzini, M.J. Alderweireldt, S. Aleksa, M. Aleksandrov, I.N. Alexa, C. Alexopoulos, T. Alfonsi, A. Alfonsi, F. Alhroob, M. Ali, B. Ali, S. Aliev, M. Alimonti, G. Allaire, C. Allbrooke, B.M.M. Allen, B.W. Allport, P.P. Aloisio, A. Alonso, F. Alpigiani, C. Alunno Camelia, E. Alvarez Estevez, M. Alviggi, M.G. Amaral Coutinho, Y. Ambler, A. Ambroz, L. Amelung, C. Amidei, D. Amor Dos Santos, S.P. Amoroso, S. Amrouche, C.S. An, F. Anastopoulos, C. Andari, N. Andeen, T. Anders, J.K. Andrean, S.Y. Andreazza, A. Andrei, V. Anelli, C.R. Angelidakis, S. Angerami, A. Anisenkov, A.V. Annovi, A. Antel, C. Anthony, M.T. Antipov, E. Antonelli, M. Antrim, D.J.A. Anulli, F. Aoki, M. Aparisi Pozo, J.A. Aparo, M.A. Aperio Bella, L. Aranzabal, N. Araujo Ferraz, V. Araujo Pereira, R. Arcangeletti, C. Arce, A.T.H. Arduh, F.A. Arguin, J.-F. Argyropoulos, S. Arling, J.-H. Armbruster, A.J. Armstrong, A. Arnaez, O. Arnold, H. Arrubarrena Tame, Z.P. Artoni, G. Asada, H. Asai, K. Asai, S. Asawatavonvanich, T. Asbah, N. Asimakopoulou, E.M. Asquith, L. Assahsah, J. Assamagan, K. Astalos, R. Atkin, R.J. Atkinson, M. Atlay, N.B. Atmani, H. Atmasiddha, P.A. Augsten, K. Austrup, V.A. Avolio, G. Ayoub, M.K. Azuelos, G. Babal, D. Bachacou, H. Bachas, K. Backman, F. Bagnaia, P. Bahmani, M. Bahrasemani, H. Bailey, A.J. Bailey, V.R. Baines, J.T. Bakalis, C. Baker, O.K. Bakker, P.J. Bakos, E. Bakshi Gupta, D. Balaji, S. 

作者机构：Department of Physics University of Adelaide Adelaide Australia Physics Department SUNY Albany AlbanyNY United States Department of Physics University of Alberta EdmontonAB Canada Department of Physics Ankara University Ankara Turkey Istanbul Aydin University Application and Research Center for Advanced Studies Istanbul Turkey Division of Physics TOBB University of Economics and Technology Ankara Turkey LAPP Université Grenoble Alpes Université Savoie Mont Blanc CNRS/IN2P3 Annecy France High Energy Physics Division Argonne National Laboratory ArgonneIL United States Department of Physics University of Arizona TucsonAZ United States Department of Physics University of Texas at Arlington ArlingtonTX United States Physics Department National and Kapodistrian University of Athens Athens Greece Physics Department National Technical University of Athens Zografou Greece Department of Physics University of Texas at Austin AustinTX United States Bahcesehir University Faculty of Engineering and Natural Sciences Istanbul Turkey Istanbul Bilgi University Faculty of Engineering and Natural Sciences Istanbul Turkey Department of Physics Bogazici University Istanbul Turkey Department of Physics Engineering Gaziantep University Gaziantep Turkey Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan  Barcelona Institute of Science and Technology Barcelona Spain Institute of High Energy Physics Chinese Academy of Sciences Beijing China Physics Department Tsinghua University Beijing China Department of Physics Nanjing University Nanjing China  Beijing China Institute of Physics University of Belgrade Belgrade Serbia Department for Physics and Technology University of Bergen Bergen Norway Physics Division Lawrence Berkeley National Laboratory University of California BerkeleyCA United States Institut für Physik Humboldt Universität zu Berlin Berlin Germany Albert Einstein Center for Fundamental Physics Laboratory for High Energy Physics University of Bern Bern Switzerland School of Physics and Astronomy University of Birmingham Birmingham United Kingdom Facultad de Ciencias Centro de Investigaciónes Universidad Antonio Nariño Bogotá Colombia Departamento de Física Universidad Nacional de Colombia Bogotá Colombia INFN Bologna Universita' di Bologna Dipartimento di Fisica Italy INFN Sezione di Bologna Italy Physikalisches Institut Universität Bonn Bonn Germany Department of Physics Boston University BostonMA United States University of Colorado Boulder Department of Physics Colorado United States Physics Department Brookhaven National Laboratory UptonNY United States Department of Physics Brandeis University WalthamMA United States Transilvania University of Brasov Brasov Romania Horia Hulubei National Institute of Physics and Nuclear Engineering Bucharest Romania Department of Physics Alexandru Ioan Cuza University of Iasi Iasi Romania National Institute for Research and Development of Isotopic and Molecular Technologies Physics Department Cluj-Napoca Romania University Politehnica Bucharest Bucharest Romania West University in Timisoara Timisoara Romania Faculty of Mathematics Physics and Informatics Comenius University Bratislava Slovakia Department of Subnuclear Physics Institute of Experimental Physics of the Slovak Academy of Sciences Kosice Slovakia Departamento de Física Universidad de Buenos Aires Buenos Aires Argentina California State University CA United States Cavendish Laboratory University of Cambridge Cambridge United Kingdom Department of Physics University of Cape Town Cape Town South Africa Department of Mechanical Engineering Science University of Johannesburg Johannesburg South Africa School of Physics University of the Witwatersrand Johannesburg South Africa Department of Physics Carleton University OttawaON Canada Faculté des Sciences Ain Chock Réseau Universitaire de Physique des Hautes Energies Université Hassan II Casablanca Morocco Faculté des Sciences Université Ibn-Tofail Kénitra Morocco LPMR Faculté des Sciences Université Mohamed Premier Oujda Morocco Faculté des sciences Université Mohammed V Rabat Morocco CERN Geneva Switzerland Enrico Fermi Institute University of Chicago ChicagoIL United States LPC Université Clermont Auvergne CNRS/IN2P3 Clermont-Ferrand France Nevis Laboratory Columbia University IrvingtonNY United States Niels Bohr Institute University of Copenhagen Copenhagen Denmark Dipartimento di Fisica Università della Calabria Rende Italy INFN Gruppo Collegato di Cosenza Laboratori Nazionali di Frascati Italy Physics Department Southern Methodist University DallasTX United States Physics Department University of Texas at Dallas RichardsonTX United States National Centre for Scientific Research "Demokritos" Agia Paraskevi Greece Department of Physics Stockholm University Stockholm Sweden Oskar Klein Centre Stockholm Sweden Deutsches Elektronen-Synchrotron DESY Hamburg and Zeuthen Germany Lehrstuhl für Experimentelle Physik IV Technische Universität Dortmund Dortmund Germany Institut für Kern- und Teilchenphysik Technische Universität Dresden Dresden Germany Department of Physics Duke University DurhamNC United States SUPA - School of Physics and Astronomy University of Edinburgh Edinburgh United Kingdom INFN Laboratori Nazionali di Frascati Frascati Italy Physikalisches Institut Albert-Ludwigs-Universität Freiburg Freiburg Germany II. Physikalisches Institut Georg-August-Universität Göttingen Göttingen Germany 

出 版 物：《arXiv》 (arXiv)

年 卷 期：2020年

核心收录：

主　　题：Charged particles 

摘      要：The yield of charged particles opposite to a Z boson with large transverse momentum (pT) is measured in 260 pb−1 of pp and 1.7 nb−1 of Pb+Pb collision data at 5.02 TeV per nucleon pair recorded with the ATLAS detector at the Large Hadron Collider. The Z boson tag is used to select hard-scattered partons with specific kinematics, and to observe how their showers are modified as they propagate through the quark-gluon plasma created in Pb+Pb collisions. Compared with pp collisions, charged-particle yields in Pb+Pb collisions show significant modifications as a function of charged-particle pT in a way that depends on event centrality and Z boson pT. The data are compared with a variety of theoretical calculations and provide new information about the medium-induced energy loss of partons in a pT regime difficult to measure through other channels. © 2020, CC BY.