ALAN RITTENBERG, ANGELA BARBARO-GALTIERI, THOMAS LASINSKI, ARTHUR H. ROSENFELD, and THOMAS G. TRIPPE^*

• Lawrence Radiation Laboratory, University of California, Berkeley, California 94720

MATTS ROOS^† and CLAUDE BRICMAN

• CERN, Geneva, Switzerland

PAUL SÖDING

• DESY, Hamburg, Germany

NAOMI BARASH-SCHMIDT

• Brandeis University, Waltham, Massachusetts 02154

CHARLES G. WOHL

• Oxford University, Oxford, England

• ^*The Berkeley Particle Data Center is jointly supported by the U.S. Atomic Energy Commission and the Office of the Standard Reference Data of the National Bureau of Standards.
• ^†On leave of absence from the Institute of Nuclear Physics, University of Helsinki, Helsinki, Finland.