[1] Duke Univ, Dept Phys, Durham, NC 27706 USA
[2] Lund Univ, Inst Fys, S-22100 Lund, Sweden
[3] Bogazici Univ, Dept Phys, Istanbul, Turkey
[4] Hampton Univ, Dept Phys, Hampton, VA 23668 USA
[5] Univ Copenhagen, Niels Bohr Inst, DK-1168 Copenhagen, Denmark
[6] Joint Inst Nucl Res, Dubna, Russia
[7] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA
[8] CERN, European Lab Particle Phys, CH-1211 Geneva, Switzerland
[9] Moscow Engn & Phys Inst, Moscow, Russia
[10] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA
[11] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, Russia
[12] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
[13] PN Lebedev Phys Inst, Moscow 117924, Russia
[14] Acad Min & Met, Fac Phys & Nucl Tech, Krakow, Poland
[15] Petersburg Nucl Phys Inst, Gatchina, St Petersburg, Russia