C. G. Wohl, R. N. Cahn, A. Rittenberg, T. G. Trippe, and G. P. Yost^*

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

F. C. Porter

• Department of Physics, California Institute of Technology, Pasadena, California 91125, USA

J. J. Hernandez and L. Montanet

• CERN, European Laboratory for Particle Physics, CH-1211 Geneva 23, Switzerland

R. E. Hendrick

• Department of Radiology, University of Colorado Medical Center, Denver, Colorado 80262, USA

R. L. Crawford

• Department of Natural Philosophy, University of Glasgow, G12 8QQ Glasgow, Scotland

M. Roos and N. A. Törnqvist

• Department of High Energy Physics, University of Helsinki, SF-00170 Helsinki 17, Finland, and CERN, European Laboratory for Particle Physics, CH-1211 Geneva 23, Switzerland

G. Höhler

• University of Karlsruhe, D-75 Karlsruhe, Federal Republic of Germany

M. Aguilar-Benitez

• Junta de Energia Nuclear, Madrid 3, Spain, and CERN, European Laboratory for Particle Physics, CH-1211 Geneva 23, Switzerland

T. Shimada

• Meiji University, Kanda-Surugadai 1-1, Chiyoda-ku, Tokyo 101, Japan

M. J. Losty

• Division of Physics, National Research Council, Ottawa, Ontario K1A 0R6, Canada

G. P. Gopal

• Rutherford Appleton Laboratory, Chilton, Didcot, Oxon. OX11 0QX, England

Ch. Walck

• Department of Physics, University of Stockholm, S-11346 Stockholm, Sweden

R. E. Shrock

• Department of Physics, State University of New York, Stony Brook, New York 11794, USA

R. Frosch

• Swiss Institute for Nuclear Research, SIN, CH-5234 Villigen, Switzerland

L. D. Roper and W. P. Trower

• Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA

B. Armstrong^*

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

• ^*The Berkeley Particle Data Group is supported by the Director, Office of Energy Research, Office of High Energy and Nuclear Physics, Division of High Energy Physics of the U.S. Department of Energy under Contract No. DE-AC03-76SF00098, and by the U.S. National Science Foundation under Agreement No. PHY83-18358.