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40. Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands 35. Universitat de Barcelona, Barcelona, Spain 73. LIFAELS, La Salle, Universitat Ramon Llull, Barcelona, Spain 36. Universidad de Santiago de Compostela, Santiago de Compostela, Spain 45. H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom 6. CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France 51. Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom 5. Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France 9. Fakult?t Physik, Technische Universit?t Dortmund, Dortmund, Germany 37. European Organization for Nuclear Research (CERN), Geneva, Switzerland 50. School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom 29. Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia 24. Sezione INFN di Roma La Sapienza, Roma, Italy 2. Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil 21. Sezione INFN di Padova, Padova, Italy 7. LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France 17. Sezione INFN di Firenze, Firenze, Italy 65. Università di Firenze, Firenze, Italy 39. Physik-Institut, Universit?t Zürich, Zürich, Switzerland 56. University of Cincinnati, Cincinnati, OH, United States 53. School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom 10. Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany 18. Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy 34. Institute for High Energy Physics (IHEP), Protvino, Russia 57. Syracuse University, Syracuse, NY, United States 72. Università della Basilicata, Potenza, Italy 11. Physikalisches Institut, Ruprecht-Karls-Universit?t Heidelberg, Heidelberg, Germany 47. Department of Physics, University of Warwick, Coventry, United Kingdom 58. Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil, associated to 2 30. Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia 16. Sezione INFN di Ferrara, Ferrara, Italy 46. Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom 38. Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland 22. Sezione INFN di Pisa, Pisa, Italy 1. Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil 8. LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France 49. School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom 31. Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia 44. University of Birmingham, Birmingham, United Kingdom 67. Università di Modena e Reggio Emilia, Modena, Italy 33. Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia 15. Sezione INFN di Cagliari, Cagliari, Italy 41. Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands 28. Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania 76. Università di Padova, Padova, Italy 20. Sezione INFN di Milano Bicocca, Milano, Italy 69. Università di Milano Bicocca, Milano, Italy 14. Sezione INFN di Bologna, Bologna, Italy 62. Università di Bologna, Bologna, Italy 23. Sezione INFN di Roma Tor Vergata, Roma, Italy 70. Università di Roma Tor Vergata, Roma, Italy 19. Sezione INFN di Genova, Genova, Italy 68. Università di Genova, Genova, Italy 52. Imperial College London, London, United Kingdom 54. Department of Physics, University of Oxford, Oxford, United Kingdom 3. Center for High Energy Physics, Tsinghua University, Beijing, China 25. Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland 4. LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France 42. NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine 48. STFC Rutherford Appleton Laboratory, Didcot, United Kingdom 64. Università di Ferrara, Ferrara, Italy 12. School of Physics, University College Dublin, Dublin, Ireland 32. Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN), Moscow, Russia 59. Institut für Physik, Universit?t Rostock, Rostock, Germany, associated to 11 43. Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine 26. AGH - University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland 63. Università di Cagliari, Cagliari, Italy 78. Scuola Normale Superiore, Pisa, Italy 75. Hanoi University of Science, Hanoi, Viet Nam 74. IFIC, Universitat de Valencia-CSIC, Valencia, Spain 13. Sezione INFN di Bari, Bari, Italy 61. Università di Bari, Bari, Italy 71. Università di Roma La Sapienza, Roma, Italy 77. Università di Pisa, Pisa, Italy 27. National Center for Nuclear Research (NCBJ), Warsaw, Poland 66. Università di Urbino, Urbino, Italy 55. Massachusetts Institute of Technology, Cambridge, MA, United States 60. P.N. Lebedev Physical Institute, Russian Academy of Science (LPI RAS), Moscow, Russia