Nuclear multifragmentation, percolation, and the Fisher droplet model: Common features of reducibility and thermal scaling

Citation
Jb. Elliott et al., Nuclear multifragmentation, percolation, and the Fisher droplet model: Common features of reducibility and thermal scaling, PHYS REV L, 85(6), 2000, pp. 1194-1197
Citations number
20
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
85
Issue
6
Year of publication
2000
Pages
1194 - 1197
Database
ISI
SICI code
0031-9007(20000807)85:6<1194:NMPATF>2.0.ZU;2-4
Abstract
It is shown that the Fisher droplet model, percolation, and nuclear multifr agmentation share the common features of reducibility (stochasticity in mul tiplicity distributions) and thermal scaling tone-fragment production proba bilities are Boltzmann factors). Barriers obtained, for cluster production on percolation lattices, from the Boltzmann factors show a power-law depend ence on cluster size with an exponent of 0.42 +/- 0.02. The EOS Collaborati on Au multifragmentation data yield barriers with a power-law exponent of 0 .68 +/-. 0.03. Values of the surface energy coefficient of a low density nu clear system are also extracted.