Source size scaling of fragment production in projectile breakup

被引：34

作者：

Beaulieu, L

Bowman, DR

Fox, D

DasGupta, S

Pan, J

Ball, GC

Djerroud, B

Dore, D

GalindoUribarri, A

Guinet, D

Hagberg, E

Horn, D

Laforest, R

Larochelle, Y

Lautesse, P

Samri, M

Roy, R

StPierre, C

机构：

[1] AECL RES, CHALK RIVER LABS, CHALK RIVER, ON K0J 1J0, CANADA

[2] INST PHYS NUCL, F-69622 VILLEURBANNE, FRANCE

[3] MCGILL UNIV, DEPT PHYS, MONTREAL, PQ H3A 2T8, CANADA

来源：

PHYSICAL REVIEW C | 1996年 / 54卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.54.R973

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Fragment production has been studied as a function of the source mass and excitation energy in peripheral collisions of Cl-35+ Au-197 at 43 MeV/nucleon and Ge-70+Ti-nat 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) similar to 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.

引用

页码：R973 / R976

页数：4

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