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Coherent photoproduction of ρ0 vector mesons in ultra-peripheral Pb-Pb collisions at \( \sqrt{{\mathrm{s}}_{\mathrm{NN}}} \) = 5.02 TeV
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  • Regular Article - Experimental Physics
  • Open Access
  • Published: 04 June 2020

Coherent photoproduction of ρ0 vector mesons in ultra-peripheral Pb-Pb collisions at \( \sqrt{{\mathrm{s}}_{\mathrm{NN}}} \) = 5.02 TeV

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Journal of High Energy Physics volume 2020, Article number: 35 (2020) Cite this article

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Abstract

Cross sections for the coherent photoproduction of ρ0 vector mesons in ultra-peripheral Pb-Pb collisions at \( \sqrt{{\mathrm{s}}_{\mathrm{NN}}} \) = 5.02 TeV are reported. The measurements, which rely on the π+π− decay channel, are presented in three regions of rapidity covering the range |y| < 0.8. For each rapidity interval, cross sections are shown for different nuclear-breakup classes defined according to the presence of neutrons measured in the zero-degree calorimeters. The results are compared with predictions based on different models of nuclear shadowing. Finally, the observation of a coherently produced resonance-like structure with a mass around 1.7 GeV/c2 and a width of about 140 MeV/c2 is reported and compared with similar observations from other experiments.

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Authors and Affiliations

  1. A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation, Yerevan, Armenia

    A. Grigoryan

  2. Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, Kiev, Ukraine

    A. Alkin, V. Trubnikov, V. Yurchenko & G. Zinovjev

  3. Bose Institute, Department of Physics and Centre for Astroparticle Physics and Space Science (CAPSS), Kolkata, India

    D. Banerjee, M. A. Bhat, R. Biswas, S. Biswas, P. Das, S. Das, S. K. Ghosh, A. Modak, S. K. Prasad & S. Raha

  4. Budker Institute for Nuclear Physics, Novosibirsk, Russia

    Y. Pestov

  5. California Polytechnic State University, San Luis Obispo, California, U.S.A.

    J. L. Klay

  6. Central China Normal University, Wuhan, China

    H. M. Alfanda, M. N. Anaam, P. Bartalini, W. Chang, P. Cui, W. Deng, Y. Ding, F. Fan, M. Hamid, S. Kar, A. M. Khan, X. L. Li, Y. Mao, C. Mengke, H. Pei, X. Peng, X. Ren, S. Tang, R. Xu, Z. Yin, X. Zhang, Z. Zhang, D. Zhou, J. Zhu & Y. Zhu

  7. Centre de Calcul de l’IN2P3, Villeurbanne, Lyon, France

    R. Vernet

  8. Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear (CEADEN), Havana, Cuba

    R. A. Diaz, E. López Torres & G. M. Perez

  9. Centro de Investigación y de Estudios Avanzados (CINVESTAV), Mexico City and Mérida, Mexico

    G. Herrera Corral

  10. Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi’, Rome, Italy

    N. Agrawal, A. Alici, F. Carnesecchi, L. Cifarelli, D. De Gruttola, D. Hatzifotiadou, R. Nania, F. Noferini, S. Pisano, J. Wilkinson & A. Zichichi

  11. Chicago State University, Chicago, Illinois, U.S.A.

    E. Garcia-Solis & A. Harton

  12. China Institute of Atomic Energy, Beijing, China

    X. Li

  13. Comenius University Bratislava, Faculty of Mathematics, Physics and Informatics, Bratislava, Slovakia

    M. Meres, M. Pikna, B. Sitar, A. Szabo & I. Szarka

  14. COMSATS University Islamabad, Islamabad, Pakistan

    Y. Ali, J. B. Butt, S. A. Hussain, H. Ilyas, M. U. Naru, M. Suleymanov, U. Tabassam & A. Zaman

  15. Creighton University, Omaha, Nebraska, U.S.A.

    C. Anson, R. Hosokawa & J. E. Seger

  16. Department of Physics, Aligarh Muslim University, Aligarh, India

    S. Ahmad, B. Ali, M. D. Azmi, S. Khan, A. Khatun & M. Mohisin Khan

  17. Department of Physics, Pusan National University, Pusan, Republic of Korea

    H. Kim, B. Lim & I.-K. Yoo

  18. Department of Physics, Sejong University, Seoul, Republic of Korea

    S. Kim

  19. Department of Physics, University of California, Berkeley, California, U.S.A.

    D. U. Dixit, E. D. Lesser, A. Liu & F. Torales-Acosta

  20. Department of Physics, University of Oslo, Oslo, Norway

    I. C. Arsene, O. Dordic, A. Lardeux, S. M. Mahmood, Q. W. Malik, A. Neagu, M. Richter, K. Røed, T. B. Skaali, T. S. Tveter & J. Wikne

  21. Department of Physics and Technology, University of Bergen, Bergen, Norway

    J. Alme, L. Altenkamper, Ø. Djuvsland, V. N. Eikeland, M. R. Ersdal, F. M. Fionda, O. S. Groettvik, I. M. Lofnes, J. Nystrand, A. Rehman, D. Röhrich, G. J. Tambave, K. Ullaland, B. Wagner, S. Yang, S. Yuan & Z. Zhou

  22. Dipartimento di Fisica dell’Università ’La Sapienza’ and Sezione INFN, Rome, Italy

    F. Meddi

  23. Dipartimento di Fisica dell’Università and Sezione INFN, Cagliari, Italy

    S. Boi, A. Chauvin, A. De Falco, B. Paul & G. L. Usai

  24. Dipartimento di Fisica dell’Università and Sezione INFN, Trieste, Italy

    P. Camerini, G. Contin, R. Lea, G. V. Margagliotti, C. D. Martin, R. Rui & V. Zaccolo

  25. Dipartimento di Fisica dell’Università and Sezione INFN, Turin, Italy

    L. Barioglio, S. Beole, A. Bianchi, L. Bianchi, E. Botta, Y. Corrales Morales, S. Delsanto, A. Ferretti, M. Gagliardi, M. Masera, F. Mazzaschi, L. Micheletti, L. Quaglia, L. Terlizzi & E. Vercellin

  26. Dipartimento di Fisica e Astronomia dell’Università and Sezione INFN, Bologna, Italy

    A. Alici, S. Arcelli, F. Carnesecchi, L. Cifarelli, M. Colocci, M. Giacalone, G. Scioli & A. Zichichi

  27. Dipartimento di Fisica e Astronomia dell’Università and Sezione INFN, Catania, Italy

    R. Barbera, P. La Rocca, C. Pinto & F. Riggi

  28. Dipartimento di Fisica e Astronomia dell’Università and Sezione INFN, Padova, Italy

    F. Baruffaldi, M. Faggin, P. Giubilato, M. Lunardon, A. Rossi, F. Soramel & S. Trogolo

  29. Dipartimento di Fisica ‘E.R. Caianiello’ dell’Università and Gruppo Collegato INFN, Salerno, Italy

    A. De Caro, S. De Pasquale, M. Fusco Girard, E. Meninno, L. D. Stritto & T. Virgili

  30. Dipartimento DISAT del Politecnico and Sezione INFN, Turin, Italy

    M. Agnello, A. Balbino, S. Bufalino, F. Catalano, P. Fecchio & F. Grosa

  31. Dipartimento di Scienze e Innovazione Tecnologica dell’Università del Piemonte Orientale and INFN Sezione di Torino, Alessandria, Italy

    P. Cortese, L. Ramello & M. Sitta

  32. Dipartimento di Scienze MIFT, Università di Messina, Messina, Italy

    G. Mandaglio & A. Trifiró

  33. Dipartimento Interateneo di Fisica ‘M. Merlin’ and Sezione INFN, Bari, Italy

    D. Di Bari, G. Trombetta & G. Volpe

  34. European Organization for Nuclear Research (CERN), Geneva, Switzerland

    G. Aglieri Rinella, D. Andreou, M. Angeletti, A. Augustinus, K. Barth, F. Bellini, L. Betev, F. Bock, P. Buncic, S. Chapeland, V. Chibante Barroso, P. Chochula, F. Costa, A. Di Mauro, R. Divià, G. Eulisse, A. Festanti, U. Fuchs, C. Gargiulo, C. Grigoras, J. F. Grosse-Oetringhaus, J. A. Hasenbichler, H. Hillemanns, P. Hristov, J. P. Iddon, G. M. Innocenti, N. Jacazio, A. Kalweit, P. Karczmarczyk, M. Keil, J. Klein, A. Kluge, M. L. Knichel, P. J. Konopka, V. Kučera, K. Lapidus, E. Laudi, M. Lettrich, M. Mager, P. Martinengo, N. Mohammadi, A. Morsch, T. Mrnjavac, L. Musa, O. Pinazza, M. Puccio, F. Reidt, P. Riedler, W. Riegler, D. Rohr, Y. Schutz, R. Shahoyan, G. Simonetti, M. Suljic, A. Tauro, A. Telesca, P. Vande Vyvre, B. Volkel, B. von Haller, A. Wegrzynek, S. C. Wenzel, C. Zampolli & N. Zardoshti

  35. Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Split, Croatia

    S. Gotovac, P. Loncar, E. Mudnic & L. Vickovic

  36. Faculty of Engineering and Science, Western Norway University of Applied Sciences, Bergen, Norway

    H. Helstrup, K. F. Hetland, B. Kileng, S. V. Nesbo & M. M. Storetvedt

  37. Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Prague, Czech Republic

    J. Bielčík, M. Broz, J. G. Contreras, T. Herman, D. Horak, K. Krizkova Gajdosova, R. Lavicka, V. Petráaček, K. Šafařík, S. R. Torres & B. A. Trzeciak

  38. Faculty of Science, P.J. Šafárik University, Košice, Slovakia

    M. Bombara, A. Kravčáková, Z. Rescakova, M. Šefčík, L. Tropp, M. Vala & J. Vrláková

  39. Frankfurt Institute for Advanced Studies, Johann Wolfgang Goethe-Universität Frankfurt, Frankfurt, Germany

    J. de Cuveland, S. Gorbunov, D. Hutter, S. Kirsch, I. Kisel, M. Krzewicki, S. L. La Pointe, J. Lehrbach, V. Lindenstruth, G. Neskovic & A. R. Redelbach

  40. Fudan University, Shanghai, China

    Y. G. Ma, Q. Shou & S. Zhang

  41. Gangneung-Wonju National University, Gangneung, Republic of Korea

    Y. W. Baek & J. S. Kim

  42. Gauhati University, Department of Physics, Guwahati, India

    B. Bhattacharjee, N. Hussain & P. Sarma

  43. Helmholtz-Institut für Strahlen- und Kernphysik, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany

    M. Ball, P. Hauer, B. Ketzer, T. Mahmoud & V. Ratza

  44. Helsinki Institute of Physics (HIP), Helsinki, Finland

    S. S. Räsänen & O. A. M. Saarimaki

  45. High Energy Physics Group, Universidad Autóónoma de Puebla, Puebla, Mexico

    R. S. Camacho, A. Fernández Téllez, I. B. Guzman, E. G. Hernandez, M. I. Martínez, L. A. P. Moreno, S. A. R. Ramirez, M. Rodríguez Cahuantzi, G. Tejeda Muñoz, A. Vargas & S. Vergara Limón

  46. Hiroshima University, Hiroshima, Japan

    K. Shigaki, T. Sugitate, Y. Yamaguchi & K. Yamakawa

  47. Hochschule Worms, Zentrum für Technologietransfer und Telekommunikation (ZTT), Worms, Germany

    R. Keidel

  48. Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, Romania

    C. Andrei, A. Bercuci, A. Herghelegiu, A. Lindner, M. Petrovici, A. Pop, C. Schiaua & M. G. Tarzila

  49. Indian Institute of Technology Bombay (IIT), Mumbai, India

    D. Bauri, H. Bhatt, P. Chakraborty, S. Dash, P. Dhankher, A. Goswami, B. Naik, B. K. Nandi, R. Nayak, B. Sahoo, P. Sahoo & T. Tripathy

  50. Indian Institute of Technology Indore, Indore, India

    S. Deb, P. Pareek, R. Rath, S. P. Rode, A. Roy, R. Sahoo, R. Singh, D. Thakur & S. Tripathy

  51. Indonesian Institute of Sciences, Jakarta, Indonesia

    S. Sumowidagdo

  52. INFN, Laboratori Nazionali di Frascati, Frascati, Italy

    N. Bianchi, A. Fantoni, P. Gianotti, P. Larionov, V. Muccifora, S. Pisano, F. Ronchetti & M. Toppi

  53. INFN, Sezione di Bari, Bari, Italy

    C. Ceballos Sanchez, F. Colamaria, D. Colella, G. de Cataldo, D. Elia, G. Fiorenza, V. Manzari, A. Mastroserio, M. Mazzilli, E. Nappi & G. Vino

  54. INFN, Sezione di Bologna, Bologna, Italy

    N. Agrawal, A. Alici, P. Antonioli, F. Cindolo, G. Clai, D. Hatzifotiadou, A. Margotti, R. Nania, F. Noferini, O. Pinazza, R. Preghenella, E. Scapparone & J. Wilkinson

  55. INFN, Sezione di Cagliari, Cagliari, Italy

    E. A. R. Casula, C. Cicalo, A. Masoni & S. Siddhanta

  56. INFN, Sezione di Catania, Catania, Italy

    A. Badalà, G. Mandaglio, D. Pistone, A. Rosano & A. Trifiró

  57. INFN, Sezione di Padova, Padova, Italy

    F. Antinori, A. Dainese, A. Rossi & R. Turrisi

  58. INFN, Sezione di Roma, Rome, Italy

    M. A. Mazzoni

  59. INFN, Sezione di Torino, Turin, Italy

    B. Alessandro, R. Arnaldi, S. Bagnasco, D. Berzano, E. Bruna, M. Concas, N. De Marco, A. Feliciello, P. Giubellino, J. Klein, C. Oppedisano, F. Prino, E. Scomparin & S. Vallero

  60. INFN, Sezione di Trieste, Trieste, Italy

    G. Contin, E. Fragiacomo, G. Luparello & S. Piano

  61. Inha University, Incheon, Republic of Korea

    N. K. Behera, S. Cho, B. Kim, V. Kučera, M. J. Kweon, J. Y. Kwon, J. Park & J. H. Yoon

  62. Institute for Nuclear Research, Academy of Sciences, Moscow, Russia

    U. Dmitrieva, D. Finogeev, A. Furs, O. Karavichev, T. Karavicheva, E. Karpechev, A. Kurepin, A. B. Kurepin, A. Maevskaya, Y. Melikyan, I. Morozov, I. Pshenichnov, D. Serebryakov, A. Shabanov, A. Tikhonov & N. Topilskaya

  63. Institute for Subatomic Physics, Utrecht University/Nikhef, Utrecht, Netherlands

    C. Bedda, A. Grelli, M. R. Haque, S. Jaelani, J. Margutti, A. P. Mohanty, T. Peitzmann, M. H. P. Sas, R. J. M. Snellings, B. A. Trzeciak, N. van der Kolk, L. V. R. van Doremalen, M. van Leeuwen, L. Vermunt, H. Yokoyama & H. J. C. Zanoli

  64. Institute of Experimental Physics, Slovak Academy of Sciences, Kǒsice, Slovakia

    P. Kalinak, I. Králik, M. Krivda & J. Musinsky

  65. Institute of Physics, Homi Bhabha National Institute, Bhubaneswar, India

    S. Sahoo, P. K. Sahu & S. Swain

  66. Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic

    J. Mareš & P. Závada

  67. Institute of Space Science (ISS), Bucharest, Romania

    M. G. Besoiu, A. Danu, A. Dobrin, C. Ristea, A. Sevcenco & I. Stan

  68. Institut für Kernphysik, Johann Wolfgang Goethe-Universität Frankfurt, Frankfurt, Germany

    T. Alt, H. Appelshäuser, R. Bailhache, E. Bartsch, C. Blume, L. Bratrud, H. Buesching, P. Dillenseger, B. Dönigus, S. T. Heckel, E. Hellbär, A. Hornung, P. Huhn, J. Jung, M. Jung, S. Kirsch, C. Klein, M. Kleiner, J. Konig, M. Krüger, M. Marquard, A. F. Mechler, R. H. Munzer, R. A. Negrao De Oliveira, F. Pliquett, P. Reichelt, R. Renfordt, H. S. Scheid, N. V. Schmidt, A. Toia & J. Wiechula

  69. Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Mexico City, Mexico

    E. Cuautle, A. N. Mishra, L. Nellen, A. Ortiz Velasquez, G. Paić, E. D. Rosas & S. Tripathy

  70. Instituto de Física, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil

    M. B. Gay Ducati, L. G. Pereira & R. P. Pezzi

  71. Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico

    R. Alfaro Molina, L. H. González-Trueba, V. Grabski & A. Menchaca-Rocha

  72. iThemba LABS, National Research Foundation, Somerset West, South Africa

    Z. Buthelezi & S. Foertsch

  73. Jeonbuk National University, Jeonju, Republic of Korea

    E. J. Kim & J. Kim

  74. Johann-Wolfgang-Goethe Universität Frankfurt Institut für Informatik, Fachbereich Informatik und Mathematik, Frankfurt, Germany

    A. Adler, A. Gomez Ramirez, T. Janson & U. Kebschull

  75. Joint Institute for Nuclear Research (JINR), Dubna, Russia

    B. Batyunya, S. Grigoryan, A. Kondratyev, L. Malinina, K. Mikhaylov, P. Nomokonov, V. Pozdniakov, E. Rogochaya, B. Rumyantsev & A. Vodopyanov

  76. Korea Institute of Science and Technology Information, Daejeon, Republic of Korea

    S. U. Ahn

  77. KTO Karatay University, Konya, Turkey

    A. Karasu Uysal & S. Yalcin

  78. Laboratoire de Physique des 2 Infinis, Irène Joliot-Curie, Orsay, France

    S. Aziz, Z. Conesa del Valle, B. Espagnon, C. Hadjidakis, C. Huang, L. Massacrier & C. Suire

  79. Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble-Alpes, CNRS-IN2P3, Grenoble, France

    G. Conesa Balbastre, J. Faivre, C. Furget, R. Guernane & J. Norman

  80. Lawrence Berkeley National Laboratory, Berkeley, California, U.S.A.

    N. Apadula, M. Arratia, A. Collu, L. Greiner, B. Jacak, P. M. Jacobs, S. Klein, Y. S. Lai, J. D. Mulligan & M. Płoskoń

  81. Lund University Department of Physics, Division of Particle Physics, Lund, Sweden

    J. Adolfsson, P. Christiansen, O. Matonoha, A. F. Nassirpour, A. Ohlson, A. Oskarsson, T. Richert, O. V. Rueda, D. Silvermyr & E. Stenlund

  82. Nagasaki Institute of Applied Science, Nagasaki, Japan

    H. Hamagaki, M. Ogino & K. Oyama

  83. Nara Women’s University (NWU), Nara, Japan

    M. Shimomura

  84. National and Kapodistrian University of Athens, School of Science, Department of Physics, Athens, Greece

    P. Ganoti & M. Vasileiou

  85. National Centre for Nuclear Research, Warsaw, Poland

    A. Deloff, O. Kovalenko, P. Kurashvili, R. Nair, K. Redlich, T. Siemiarczuk & G. Wilk

  86. National Institute of Science Education and Research, Homi Bhabha National Institute, Jatni, India

    P. Das, A. Dash, S. De, M. Dukhishyam, M. R. Haque, S. Kundu, B. Mohanty, T. K. Nayak & R. Singh

  87. National Nuclear Research Center, Baku, Azerbaijan

    A. Garibli & A. Rustamov

  88. National Research Centre Kurchatov Institute, Moscow, Russia

    D. Aleksandrov, D. Blau, S. Fokin, M. Ippolitov, V. Manko, S. Nikolaev, S. Nikulin, A. Nyanin, D. Peresunko, E. Ryabinkin, Y. Sibiriak, A. Vasiliev & A. Vinogradov

  89. Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark

    I. G. Bearden, C. H. Christensen, J. J. Gaardhøje, K. Gulbrandsen, Z. Moravcova, B. S. Nielsen, V. Pacik, T. Richert, J. Schukraft, F. Thoresen, V. Vislavicius & Y. Zhou

  90. Nikhef, National institute for subatomic physics, Amsterdam, Netherlands

    D. Caffarri, P. Christakoglou, Z. Khabanova, P. G. Kuijer, F. Lehas, I. Ravasenga & G. Simatovic

  91. NRC Kurchatov Institute IHEP, Protvino, Russia

    S. Evdokimov, V. Izucheev, Y. Kharlov, E. Kondratyuk, B. Polichtchouk, R. Rogalev, S. Sadovsky & A. Shangaraev

  92. NRC “Kurchatov Institute” – ITEP, Moscow, Russia

    A. Akindinov, S. Kiselev, D. Mal’Kevich, K. Mikhaylov, S. Shirinkin, R. Sultanov & K. Voloshin

  93. NRNU Moscow Engineering Physics Institute, Moscow, Russia

    V. Belyaev, A. Bogdanov, A. Bolozdynya, A. Borissov, V. Grigoriev, V. Kaplin, N. Kondratyeva, V. Loginov, Y. Melikyan, V. Samsonov & I. Selyuzhenkov

  94. Nuclear Physics Group, STFC Daresbury Laboratory, Daresbury, United Kingdom

    L. S. Barnby & R. C. Lemmon

  95. Nuclear Physics Institute of the Czech Academy of Sciences, Řež u Prahy, Czech Republic

    D. Adamová, J. Bielčíková, A. Isakov, F. Krizek, S. Kushpil & M. Šumbera

  96. Oak Ridge National Laboratory, Oak Ridge, Tennessee, U.S.A.

    F. Bock, T. M. Cormier, L. Cunqueiro, R. J. Ehlers, M. Fasel, H. Hassan, F. Jonas, C. Loizides, M. G. Poghosyan, K. F. Read, N. V. Schmidt & P. Stankus

  97. Ohio State University, Columbus, Ohio, U.S.A.

    J. T. Buxton, T. J. Humanic, A. M. Kubera, M. A. Lisa & S. Liu

  98. Petersburg Nuclear Physics Institute, Gatchina, Russia

    Y. Berdnikov, V. Ivanov, A. Khanzadeev, E. Kryshen, M. Malaev, V. Nikulin, V. Riabov, Y. Ryabov, V. Samsonov & M. Zhalov

  99. Physics department, Faculty of science, University of Zagreb, Zagreb, Croatia

    F. Erhardt, M. Jercic, M. Planinic & N. Poljak

  100. Physics Department, Panjab University, Chandigarh, India

    M. M. Aggarwal, S. Dudi, L. Kumar, S. Parmar, A. Sharma & N. Sharma

  101. Physics Department, University of Jammu, Jammu, India

    R. Bala, A. Bhasin, I. R. Bhat, A. Gupta, R. Gupta, S. Rajput, S. Sambyal, A. Sharma, M. Sharma, S. Sharma, R. Singh & V. Sumberia

  102. Physics Department, University of Rajasthan, Jaipur, India

    R. Raniwala & S. Raniwala

  103. Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Tübingen, Germany

    H. R. Schmidt, M. Schmidt & M. A. Völkl

  104. Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany

    V. Anguelov, M. Arslandok, M. C. Danisch, V. J. G. Feuillard, P. Glässel, J. Kim, M. Kim, M. K. Köhler, L. Leardini, J. A. Lopez, N. A. Martin, A. Ohlson, Y. Pachmayer, K. Reygers, R. Schicker, A. Schmah, M. O. Schmidt, J. Stachel, B. Windelband & A. Yuncu

  105. Physik Department, Technische Universität München, Munich, Germany

    S. Balouza, A. Bilandzic, T. Dahms, L. Fabbietti, P. Gasik, S. T. Heckel, B. Hohlweger, A. M. Mathis, D. L. Mihaylov, C. Mordasini, V. M. Sarti, B. Singh, S. F. Taghavi, O. Vázquez Doce & I. Vorobyev

  106. Politecnico di Bari, Bari, Italy

    G. E. Bruno

  107. Research Division and ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany

    M. Al-Turany, R. Averbeck, X. Bai, P. Braun-Munzinger, A. Caliva, D. Devetak, A. Dubla, P. Foka, U. Frankenfeld, C. Garabatos, P. Giubellino, V. Gonzalez, R. Grosso, M. K. Habib, A. Harlenderova, S. Hornung, M. Ivanov, T. Kollegger, L. Kreis, C. Lippmann, P. Malzacher, A. Marín, S. Masciocchi, D. Miśkowiec, C. Schmidt, K. Schwarz, K. Schweda, I. Selyuzhenkov & J. Zhu

  108. Rudjer Bošković Institute, Zagreb, Croatia

    T. Antičić

  109. Russian Federal Nuclear Center (VNIIEF), Sarov, Russia

    D. Budnikov, S. Filchagin, R. Ilkaev, A. Kuryakin, S. Nazarenko, A. Tumkin & N. Zaviyalov

  110. Saha Institute of Nuclear Physics, Homi Bhabha National Institute, Kolkata, India

    S. Chattopadhyay, D. Das, I. Das, J. Ghosh, H. Hushnud, M. S. Islam, P. Roy, W. Shaikh & T. Sinha

  111. School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom

    H. A. Andrews, D. Evans, K. L. Graham, O. Jevons, P. G. Jones, A. Jusko, M. Krivda, J. Kvapil, R. Lietava, S. Ragoni, O. Villalobos Baillie & E. Willsher

  112. Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Lima, Peru

    J. L. Bazo Alba, E. Calvo Villar, A. M. Gago & C. Soncco

  113. St. Petersburg State University, St. Petersburg, Russia

    I. Altsybeev, A. Erokhin, G. Feofilov, V. Kovalenko, T. Lazareva, D. Nesterov, V. Vechernin, A. Zarochentsev & V. Zherebchevskii

  114. Stefan Meyer Institut für Subatomare Physik (SMI), Vienna, Austria

    P. Buhler, A. A. Capon, S. Lehner, E. Meninno & M. Weber

  115. SUBATECH, IMT Atlantique, Université de Nantes, CNRS-IN2P3, Nantes, France

    L. Aphecetche, G. Batigne, O. Bugnon, F. P. A. Damas, B. Erazmus, K. Garg, M. Germain, M. Guittiere, G. Martínez García, E. Masson, P. Pillot, A. Shabetai, D. Stocco & M. Tarhini

  116. Suranaree University of Technology, Nakhon Ratchasima, Thailand

    C. Kobdaj & A. Songmoolnak

  117. Technical University of Košice, Košice, Slovakia

    S. Jadlovska, J. Jadlovsky, L. Koska & D. Voscek

  118. Technische Universität München, Excellence Cluster ’Universe’, Munich, Germany

    A. Bilandzic, T. Dahms, L. Fabbietti, P. Gasik, A. M. Mathis & O. Vázquez Doce

  119. The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Cracow, Poland

    S. A. Bysiak, J. Figiel, L. Görlich, A. Khuntia, M. Kowalski, A. Matyja, C. Mayer, J. Otwinowski, A. Rybicki, H. Sharma & I. Sputowska

  120. The University of Texas at Austin, Austin, Texas, U.S.A.

    J. T. Blair, E. F. Gauger, R. Hannigan, C. Markert, J. Schambach & D. Thomas

  121. Universidad Autónoma de Sinaloa, Culiacán, Mexico

    C. D. Galvan, I. León Monzón & S. R. Torres

  122. Universidade de São Paulo (USP), São Paulo, Brazil

    M. Bregant, H. F. Degenhardt, C. Jahnke, P. F. T. Matuoka, M. G. Munhoz & A. A. P. Suaide

  123. Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil

    D. S. D. Albuquerque, D. D. Chinellato & J. Takahashi

  124. Universidade Federal do ABC, Santo Andre, Brazil

    M. R. Cosentino

  125. University of Cape Town, Cape Town, South Africa

    J. Cleymans, T. Dietel, S. Mhlanga & S. Murray

  126. University of Houston, Houston, Texas, U.S.A.

    R. Bellwied, F. Flor, M. Jin, A. G. Knospe, J. L. Martinez, C. J. Myers, S. P. Pathak, L. Pinsky, R. E. Quishpe, J. Song, C. Terrevoli, A. R. Timmins & E. N. Umaka

  127. University of Jyväskylä, Jyväskylä, Finland

    D. J. Kim, J. E. Parkkila, J. Rak, H. Rytkonen, M. Slupecki & W. H. Trzaska

  128. University of Liverpool, Liverpool, United Kingdom

    M. D. Buckland, M. Chartier, C. Hills, J. P. Iddon, S. W. Lindsay, J. Liu & J. Norman

  129. University of Science and Technology of China, Hefei, China

    Y. Wu

  130. University of South-Eastern Norway, Tonsberg, Norway

    R. Langoy & J. Lien

  131. University of Tennessee, Knoxville, Tennessee, U.S.A.

    R. A. Bertens, A. J. Castro, C. Hughes, C. Nattrass, A. C. Oliveira Da Silva, K. F. Read, A. R. Schmier, S. Sorensen, P. J. Steffanic & W. E. Witt

  132. University of the Witwatersran