[1] IST, FCUL, LIP, PT-1000 Lisbon, Portugal
[2] Iowa State Univ Sci & Technol, Dept Phys & Astron, Ames, IA 50011 USA
[3] Univ Instelling Antwerp, Dept Phys, B-2610 Antwerp, Belgium
[4] VUB, ULB, IIHE, B-1050 Brussels, Belgium
[5] Univ Etat Mons, Fac Sci, B-7000 Mons, Belgium
[6] Univ Athens, Phys Lab, GR-10680 Athens, Greece
[7] Univ Bergen, Dept Phys, N-5007 Bergen, Norway
[8] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy
[9] Ist Nazl Fis Nucl, I-40126 Bologna, Italy
[10] Ctr Brasileiro Pesquisas Fis, BR-22290 Rio De Janeiro, Brazil
[11] Pontificia Univ Catolica Rio de Janeiro, Dept Fis, BR-22453 Rio De Janeiro, Brazil
[12] Univ Estado Rio De Janeiro, Inst Fis, Rio De Janeiro, Brazil
[13] Comenius Univ, Fac Math & Phys, Bratislava 84215, Slovakia
[14] Coll France, Phys Corpusculaire Lab, IN2P3, CNRS, F-75231 Paris 05, France
[15] CERN, CH-1211 Geneva 23, Switzerland
[16] Univ Strasbourg, CNRS, IN2P3, Inst Rech Subatom, F-67037 Strasbourg, France
[17] NCSR Demokritos, Inst Nucl Phys, GR-15310 Athens, Greece
[18] CAS, Inst Phys, FZU, Div High Energy Phys, Prague 18040 8, Czech Republic
[19] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy
[20] Ist Nazl Fis Nucl, I-16146 Genoa, Italy
[21] Univ Grenoble 1, Inst Sci Nucl, CNRS, IN2P3, F-38026 St Martin Dheres, France
[22] Helsinki Inst Phys, Helsinki 00014, Finland
[23] Joint Inst Nucl Res, Moscow 101000, Russia
[24] Univ Karlsruhe, Inst Expt Kernphys, D-76128 Karlsruhe, Germany
[25] Inst Nucl Phys, PL-30055 Krakow, Poland
[26] Univ Min & Met Krakow, PL-30055 Krakow, Poland
[27] Univ Paris 11, Accelerateur Lineaire Lab, IN2P3, CNRS, F-91405 Orsay, France
[28] Univ Lancaster, Sch Phys & Chem, Lancaster LA1 4YB, England
[29] Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England
[30] Univ Paris 06, CNRS, IN2P3, LPNHE, F-75252 Paris 05, France
[31] Univ Paris 07, F-75252 Paris 05, France
[32] Lund Univ, Dept Phys, S-22363 Lund, Sweden
[33] Univ Lyon 1, IPNL, IN2P3, CNRS, F-69622 Villeurbanne, France
[34] Univ Aix Marseille 1, CPP, IN2P3, CNRS, F-13288 Marseille 09, France
[35] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy
[36] Ist Nazl Fis Nucl, I-20133 Milan, Italy
[37] Univ Milan, Dipartimento Fis, Biocca, I-20126 Milan, Italy
[38] Niels Bohr Inst, DK-2100 Copenhagen O, Denmark
[39] Charles Univ Prague, MFF, IPNP, Areal MFF, CR-18000 Prague 8, Czech Republic
[40] NIKHEF H, NL-1009 DB Amsterdam, Netherlands
[41] Natl Tech Univ Athens, Dept Phys, GR-15773 Athens, Greece
[42] Univ Oslo, Dept Phys, N-1000 Oslo 3, Norway
[43] Univ Oviedo, Dept Fis, E-33007 Oviedo, Spain
[44] Univ Oxford, Dept Phys, Oxford OX1 3RH, England
[45] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy
[46] Ist Nazl Fis Nucl, I-35131 Padua, Italy
[47] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England
[48] Univ Roma Tor Vergata, Dipartimento Fis, I-00173 Rome, Italy
[49] Ist Nazl Fis Nucl, I-00173 Rome, Italy
[50] Univ Roma 3, Dipartimento Fis, I-00146 Rome, Italy