Are Multifragment Emission Probabilities Reducible to an Elementary Binary Emission Probability

L. G. Moretto, L. Phair, K. Tso, K. Jing, G. J. Wozniak, R. T. Souza, D. R. Bowman, N. Carlin, C. K. Gelbke, W. G. Gong, Y. D. Kim, M. A. Lisa, W. G. Lynch, G. F. Peaslee, M. B. Tsang, and F. Zhu
Phys. Rev. Lett. 74, 1530 – Published 27 February 1995
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Abstract

Experimental intermediate-mass-fragment multiplicity distributions for the EA=80 and 110 MeV Ar36 + Au197 reactions are shown to be binomial at all excitation energies. From these distributions, a single binary event probability p can be extracted that has a thermal dependence. Thus, it is inferred that multifragmentation is reducible to a combination of nearly independent emission processes. If sequential decay is assumed, the increase of p with excitation energy implies a contraction of the time scale that is qualitatively consistent with recent fragment-fragment correlation data.

  • Received 2 May 1994

DOI:https://doi.org/10.1103/PhysRevLett.74.1530

©1995 American Physical Society

Authors & Affiliations

L. G. Moretto, L. Phair, K. Tso, K. Jing, and G. J. Wozniak

  • Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, California 94720

R. T. Souza*, D. R. Bowman, N. Carlin, C. K. Gelbke, W. G. Gong§, Y. D. Kim, M. A. Lisa§, W. G. Lynch, G. F. Peaslee, M. B. Tsang, and F. Zhu**

  • National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824

  • *Present address: Indiana University Cyclotron Facility, Bloomington, IN 47405.
  • Present address: Chalk River Laboratories, Chalk River, Ontario K0J 1J0, Canada.
  • Present address: Instituto de Fisica, Universidade de Sao Paulo, C.P. 20516, CEP 01498, Sao Paulo, Brazil.
  • §Present address: Lawrence Berkeley Laboratory, Berkeley, CA 94720.
  • Present address: National Laboratory for High Energy Physics, 1-1 Oho, Tsukuba, Ibaraki 305, Japan.
  • Present address: Physics Department, Hope College, Holland, MI 49423.
  • **Present address: Brookhaven National Laboratory, Upton, NY 11973.

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Issue

Vol. 74, Iss. 9 — 27 February 1995

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