[1] UNIV BONN,INST PHYS,W-5300 BONN,GERMANY
[2] UNIV BRISTOL,HH WILLS PHYS LAB,BRISTOL BS8 1TL,AVON,ENGLAND
[3] COLUMBIA UNIV,NEW YORK,NY 10027
[4] CERN,CH-1211 GENEVA 23,SWITZERLAND
[5] DESY,W-2000 HAMBURG 52,GERMANY
[6] UNIV DORTMUND,INST PHYS,W-4600 DORTMUND 50,GERMANY
[7] UNIV HAMBURG,INST EXPTL PHYS 2,W-2000 HAMBURG 13,GERMANY
[8] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,DEPT PHYS,LONDON SW7 2AZ,ENGLAND
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[10] UNIV OXFORD,DEPT NUCL PHYS,OXFORD,ENGLAND
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[13] WEIZMANN INST SCI,IL-76100 REHOVOT,ISRAEL
[14] UNIV WISCONSIN,DEPT PHYS,MADISON,WI 53706