Multifragment Events from Heavy-Ion Collisions: Sources and Excitation Functions

Authors

Y. Blumenfeld, Nuclear Science Division, Lawrence Berkeley Laboratory
N. Colonna, Nuclear Science Division, Lawrence Berkeley Laboratory
P. Roussel-Chomaz, Nuclear Science Division, Lawrence Berkeley Laboratory
D. N. Delis, Nuclear Science Division, Lawrence Berkeley Laboratory
K. Hanold, Nuclear Science Division, Lawrence Berkeley Laboratory
J. C. Meng, Nuclear Science Division, Lawrence Berkeley Laboratory
Graham F. Peaslee, Nuclear Science Division, Lawrence Berkeley LaboratoryFollow
Q. C. Sui, Nuclear Science Division, Lawrence Berkeley Laboratory
G. J. Wozniak, Nuclear Science Division, Lawrence Berkeley Laboratory
L. G. Moretto, Nuclear Science Division, Lawrence Berkeley Laboratory
B. Libby, Department of Chemistry, University of Maryland
A. C. Mignerey, Department of Chemistry, University of Maryland
G. Guarino, Department of Chemistry, University of Maryland
N. Santoruvo, Università di Milano
I. Iori, Università di Milano

Document Type

Article

Publication Date

2-4-1991

Publication Source

Physical Review Letters

Volume Number

66

Issue Number

5

First Page

576

Last Page

579

Publisher

American Physical Society

Abstract

Multifragment events from 35, 40, 45, and 55 MeV/nucleon La139+12C, Al27, Ca40, V51, Cunat, and La139 reactions can be assigned to sources characterized by their velocity. At each bombarding energy, the probabilities of threefold, fourfold and fivefold events increase substantially with decreasing source velocity, but are independent of the target mass. To remove the bombarding-energy dependence, a simple transformation has been applied which gives the excitation energy of the fused system in the simple incomplete-fusion picture. These ‘‘excitation functions’’ appear to independent of both the system and bombarding energy.

Recommended Citation

Repository citation: Blumenfeld, Y.; Colonna, N.; Roussel-Chomaz, P.; Delis, D. N.; Hanold, K.; Meng, J. C.; Peaslee, Graham F.; Sui, Q. C.; Wozniak, G. J.; Moretto, L. G.; Libby, B.; Mignerey, A. C.; Guarino, G.; Santoruvo, N.; and Iori, I., "Multifragment Events from Heavy-Ion Collisions: Sources and Excitation Functions" (1991). Faculty Publications. Paper 1139.
https://digitalcommons.hope.edu/faculty_publications/1139

Published in: Physical Review Letters, Volume 66, Issue 5, February 4, 1991, pages 576-579. Copyright © 1991 American Physical Society.