[1] Ohio State Univ, Columbus, OH 43210 USA
[2] Austrian Acad Sci, Inst Hochenergiephys, A-1050 Vienna, Austria
[3] MPI Kernphys, D-69029 Heidelberg, Germany
[4] GSI Darmstadt, D-6100 Darmstadt, Germany
[5] CEA Saclay, SPE, DEIN, CEA Technol Avancees,LETI, F-91131 Gif Sur Yvette, France
[6] LENS, Florence, Italy
[7] Univ Florence, Florence, Italy
[8] ULP, CNRS, IN2P3, LEPSI, F-67037 Strasbourg, France
[9] Rutgers State Univ, Piscataway, NJ 08855 USA
[10] CERN, CH-1211 Geneva 23, Switzerland
[11] CPPM, F-13288 Marseille, France
[12] LEPES, Grenoble, France
[13] NIKHEF H, NL-1009 DB Amsterdam, Netherlands
[14] Univ Turin, Turin, Italy
[15] Univ Bristol, Bristol BS8 1TL, Avon, England
[16] Univ Hamburg, Inst Expt Phys 2, D-2000 Hamburg, Germany
[17] Univ Pavia, Dipartimento Elettron, I-27100 Pavia, Italy
[18] FNAL, Batavia, IL USA
[19] Lab Hochenergiephys, CH-3012 Bern, Switzerland
[20] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
[21] Univ Toronto, Toronto, ON M5S 1A7, Canada
[22] IIT, Chicago, IL 60616 USA
[23] LANL, Los Alamos, NM 87545 USA