Phys. Rev. C 55, R557–R561 (1997)Fragment multiplicity dependent charge distributions in heavy ion collisions
The dependence of intermediate-mass-fragment (IMF) element distributions on the multiplicity, NIMF, of detected fragments has been measured for 84Kr+197Au collisions at E/A=35, 55, 70, 100, 200, and 400 MeV. The observed dependence can be parametrized as P(NIMF|Z)∝P(Z)exp(-c⋅NIMF⋅Z), where c 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 c, revealing the meaning of this parameter to be less straightforward than previously assumed. The magnitude of c appears nonetheless to provide a nontrivial test of multifragmentation models. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.55.R557
DOI:
10.1103/PhysRevC.55.R557
PACS:
25.70.Pq
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