[1] UNIV TURIN,DIPARTIMENTO FIS SPERIMENTALE,I-10125 TURIN,ITALY
[2] IST NAZL FIS NUCL,I-10125 TURIN,ITALY
[3] CERN,DIV SL,CH-1211 GENEVA 23,SWITZERLAND
[4] DESY,D-2000 HAMBURG,GERMANY
[5] UNIV BOLOGNA,DIPARTMENTO FIS,BOLOGNA,ITALY
[6] IST NAZL FIS NUCL,I-40126 BOLOGNA,ITALY
[7] UNIV SILESIA,INST PHYS,KATOWICE,POLAND
[8] UNIV GENEVA,CH-1211 GENEVA,SWITZERLAND
[9] CARNEGIE MELLON UNIV,PITTSBURGH,PA 15213
[10] INST NUCL PHYS,PL-30055 KRAKOW,POLAND
[11] CERN,DIV TH,CH-1211 GENEVA 23,SWITZERLAND
[12] DESY,ZEUTHEN,GERMANY
[13] ETH ZURICH,ZURICH,SWITZERLAND
[14] UNIV PAVIA,DIPARTIMENTO FIS NUCL & TEOR,I-27100 PAVIA,ITALY
[15] IST NAZL FIS NUCL,I-27100 PAVIA,ITALY
[16] LAB ANNECY LE VIEUX PHYS PARTICULES,IN2P3,CNRS,F-74941 ANNECY LE VIEUX,FRANCE
[17] UNIV TENNESSEE,DEPT PHYS & ASTRON,KNOXVILLE,TN 37996
[18] UNIV PARMA,DIPARTIMENTO FIS,I-43100 PARMA,ITALY
[19] IST NAZL FIS NUCL,GRP COLLEGATO PARMA,SEZ MILAN,MILAN,ITALY
[20] STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309