Mass Asymmetric Fission Barriers for 75Br

Authors

D. N. Delis, Nuclear Science Division, Lawrence Berkeley Laboratory
Y. Blumenfeld, Nuclear Science Division, Lawrence Berkeley Laboratory
D. R. Bowman, Nuclear Science Division, Lawrence Berkeley Laboratory
N. Colonna, Nuclear Science Division, Lawrence Berkeley Laboratory
K. Hanold, Nuclear Science Division, Lawrence Berkeley Laboratory
K. Jing, Nuclear Science Division, Lawrence Berkeley Laboratory
M. Justice, Nuclear Science Division, Lawrence Berkeley Laboratory
J. C. Meng, Nuclear Science Division, Lawrence Berkeley Laboratory
Graham F. Peaslee, Nuclear Science Division, Lawrence Berkeley LaboratoryFollow
G. J. Wozniak, Nuclear Science Division, Lawrence Berkeley Laboratory
L. G. Moretto, Nuclear Science Division, Lawrence Berkeley Laboratory

Document Type

Article

Publication Date

11-18-1991

Publication Source

Nuclear Physics A

Volume Number

534

Issue Number

2

First Page

403

Last Page

428

Publisher

Elsevier

Abstract

Fragments with atomic numbers covering nearly the entire range of the mass-asymmetry coordinate (4 < Z < 27) were observed from the 5.0, 6.2, 6.9, 8.0, 10.2 and 12.7 MeV/A 63Cu + 12C reactions. Energy spectra and angular distributions show the presence of projectile-like and target-like components along with an isotropic component. The isotropic component appears as a Coulomb ring in the invariant cross-section plots indicating the presence of a binary compound nucleus decay which is confirmed by the coincidence data. Excitation functions were constructed for each Z value and a nearly complete set of mass-asymmetric barriers has been extracted for 75Br. There is excellent agreement between the experimentally determined barriers and the finite-range model predictions.

Recommended Citation

Repository citation: Delis, D. N.; Blumenfeld, Y.; Bowman, D. R.; Colonna, N.; Hanold, K.; Jing, K.; Justice, M.; Meng, J. C.; Peaslee, Graham F.; Wozniak, G. J.; and Moretto, L. G., "Mass Asymmetric Fission Barriers for 75Br" (1991). Faculty Publications. Paper 1144.
https://digitalcommons.hope.edu/faculty_publications/1144

Published in: Nuclear Physics A, Volume 534, Issue 2, November 18, 1991, pages 403-428. Copyright © 1991 Elsevier.