Abstract
The dependence of intermediate-mass-fragment (IMF) element distributions on the multiplicity, of detected fragments has been measured for collisions at , 55, 70, 100, 200, and 400 MeV. The observed dependence can be parametrized as where is a beam-energy and excitation-energy dependent parameter. Previous work indicated this parameter is zero in the liquid-gas coexistence region and positive in the gaseous phase. In contrast, we observe both negative and positive values for , revealing the meaning of this parameter to be less straightforward than previously assumed. The magnitude of appears nonetheless to provide a nontrivial test of multifragmentation models.
- Received 9 August 1996
DOI:https://doi.org/10.1103/PhysRevC.55.R557
©1997 American Physical Society