[1] Russian Acad Sci, INR, Moscow 117312, Russia
[2] INFN, Sez Napoli, I-80125 Naples, Italy
[3] Lomonosov Moscow State Univ, Skobeltsyn Inst Nucl Phys, MSU, Moscow 119991, Russia
[4] Kobe Univ, Kobe, Hyogo 6578501, Japan
[5] Univ Bern, LHEP, Albert Einstein Ctr Fundamental Phys, CH-3012 Bern, Switzerland
[6] Kyushu Univ, Fac Arts & Sci, Fukuoka, Fukuoka, Japan
[7] INFN, Sez Padova, I-35131 Padua, Italy
[8] JINR, Dubna 141980, Russia
[9] Univ Salerno, Dipartimento Fis, I-84084 Fisciano Salerno, Italy
[10] INFN, Grp Collegato, I-84084 Fisciano Salerno, Italy
[11] Univ Padua, Dipartimento Fis & Astron, I-35131 Padua, Italy
[12] Univ Federico II Napoli, Dipartimento Fis, I-80125 Naples, Italy
[13] INFN, Lab Nazl Gran Sasso, I-67010 Coppito, Italy
[14] Univ Bari, Dipartimento Fis, I-70126 Bari, Italy
[15] INFN, Sez Bari, I-70126 Bari, Italy
[16] Univ Savoie Mt Blanc, LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France
[17] INFN, Sez Bologna, I-40127 Bologna, Italy
[18] Univ Strasbourg, IPHC, CNRS, IN2P3, F-67037 Strasbourg, France
[19] Hamburg Univ, D-22761 Hamburg, Germany
[20] Univ Bologna, Dipartimento Fis & Astron, I-40127 Bologna, Italy
[21] Nagoya Univ, Nagoya, Aichi 4648602, Japan
[22] Technion, Dept Phys, IL-32000 Haifa, Israel
[23] METU, TR-06800 Ankara, Turkey
[24] Ankara Univ, TR-06560 Ankara, Turkey
[25] INFN, Sez Roma, I-00185 Rome, Italy
[26] Rudjer Boskovic Inst, Zagreb 10002, Croatia
[27] Gyeongsang Natl Univ, 900 Gazwa Dong, Jinju 660701, South Korea
[28] Rudjer Boskovic Inst, Ctr Excellence Adv Mat & Sensing Devices, Zagreb 10002, Croatia
[29] Aichi Univ Educ, Kariya, Aichi 4488542, Japan
[30] Toho Univ, Funabashi, Chiba 2748510, Japan
[31] Nihon Univ, Narashino, Chiba 2758576, Japan
[32] INFN, Lab Nazl Frascati, I-00044 Rome, Italy
[33] Moscow Engn Phys Inst Moscow, Moscow, Russia
[34] Univ Libre Bruxelles, IIHE, B-1050 Brussels, Belgium
[35] Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy
[36] Gran Sasso Sci Inst, Laquila, Italy
[37] Sez INFN Cagliari, Monserrato, Italy
[38] CERN, Geneva, Switzerland
[39] Osservatorio Astronom Padova, Padua, Italy
[40] Univ Liverpool, Liverpool, Merseyside, England