L. Bertanza^*, V. Brisson^†, P. L. Connolly, E. L. Hart, I. S. Mittra^‡, G. C. Moneti^§, R. R. Rau, N. P. Samios, I. O. Skillicorn^∥, and S. S. Yamamoto

• Brookhaven National Laboratory, Upton, New York

M. Goldberg, L. Gray, J. Leitner, S. Lichtman, and J. Westgard

• Syracuse University, Syracuse, New York

• ^*On leave of absence from the Istituto Nazionale di Fisica Nucleare, Pisa, Italy and The University of Pisa, Pisa, Italy.
• ^†On leave of absence from Ecole Polytechnique, Paris, France.
• ^‡On leave of absence from Panjab University, Panjab, Chandigarh, India.
• ^§On leave of absence from the Istituto Nazionale di Fisica Nucleare, Rome, Italy and The University of Roma, Rome, Italy.
• ^∥On leave of absence from Imperial College, London, England.