Source size scaling of fragment production in projectile breakup
Abstract
Fragment production has been studied as a function of the source mass and excitation energy in peripheral collisions of Cl+Au at 43 MeV/nucleon and Ge+Ti at 35 MeV/nucleon. The results are compared to the Au+Au data at 600 MeV/nucleon obtained by the ALADIN collaboration. A mass scaling, by 35 to 190, strongly correlated to excitation energy per nucleon, is presented, suggesting a thermal fragment production mechanism. Comparisons to a standard sequential decay model and the lattice-gas model are made. Fragment emission from a hot, rotating source is unable to reproduce the experimental source size scaling.
Keywords
Cite
@article{arxiv.nucl-ex/9607009,
title = {Source size scaling of fragment production in projectile breakup},
author = {L. Beaulieu and D. R. Bowman and D. Fox and S. Das Gupta and J. Pan and G. C. Ball and B. Djerroud and D. Dore and A. Galindo-Uribarri and D. Guinet and E. Hagberg and D. Horn and R. Laforest and Y. Larochelle and P. Lautesse and M. Samri and R. Roy and C. St-Pierre},
journal= {arXiv preprint arXiv:nucl-ex/9607009},
year = {2008}
}
Comments
13 pages LaTeX file, including 3 postscript figures (in .tar.gz fornmat), accepted in Phys. Rev. C . Also available at http://thomson.phy.ulaval.ca/ions_lourds/gil-en.html