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20 April 2024

» arxiv » nucl-ex/9607009

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Source size scaling of fragment production in projectile breakup
L. Beaulieu ; D.R. Bowman ; D. Fox ; S. Das Gupta ; J. Pan ; G.C. Ball ; B. Djerroud ; D. Dore ; A. Galindo-Uribarri ; D. Guinet ; E. Hagberg ; D. Horn ; R. Laforest ; Y. Larochelle ; P. Lautesse ; M. Samri ; R. Roy ; C. St-Pierre ;
Date:	15 Jul 1996
Journal:	Phys.Rev. C54 (1996) 973-976
Subject:	nucl-ex
Affiliation:	Universite Laval, Chalk River, McGill university, IPN de Lyon
Abstract:	Fragment production has been studied as a function of the source mass and excitation energy in peripheral collisions of $^{35}$Cl+$^{197}$Au at 43 MeV/nucleon and $^{70}$Ge+$^{nat}$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 $A_{source} sim$ 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.
Source:	arXiv, nucl-ex/9607009
Other source:	[GID 425075] nucl-ex/9607009
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