Record Details

Effect of projectile ground state spin on fission fragment anisotropies in B-10, B-11+Th-232 reactions

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Effect of projectile ground state spin on fission fragment anisotropies in B-10, B-11+Th-232 reactions
 
Creator NAYAK, BK
THOMAS, RG
CHOUDHURY, RK
SAXENA, A
SAHU, PK
KAPOOR, SS
VARMA, R
UMAKANTH, D
 
Subject anomalous peaklike structure
ion-induced fission
fusion-fission
angular-distributions
f-19+th-232 reactions
subbarrier energies
nuclei
c-12
o-16
 
Description Fission fragment angular distributions have been measured for B-10(spin=3(+)), B-11(spin=3/2(-))+Th-232 reactions at projectile energies below and above the Coulomb barrier. The fragment anisotropies for the B-11 +Th-232 system are found to be significantly larger than the statistical saddle point model (SSPM) predictions at sub-barrier energies, while for the B-10+Th-232 system the deviations from SSPM predictions are found to be much less. The present results indicate that the ground state spin of the projectile influences the fragment anisotropies at sub-barrier energies in a larger way than predicted by the statistical model with the inclusion of the M-state distributions. Calculations were carried out based on the entrance channel dependent K-states distribution and preequilibrium fission models, with inclusion of ground state spin of the projectiles, which are found to explain the variation of fission fragment anisotropies as a function of bombarding energy for both the systems.
 
Publisher AMERICAN PHYSICAL SOC
 
Date 2011-07-17T12:50:52Z
2011-12-26T12:50:18Z
2011-12-27T05:36:32Z
2011-07-17T12:50:52Z
2011-12-26T12:50:18Z
2011-12-27T05:36:32Z
2000
 
Type Article
 
Identifier PHYSICAL REVIEW C, 62(3), -
0556-2813
http://dx.doi.org/10.1103/PhysRevC.62.031601
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4733
http://hdl.handle.net/10054/4733
 
Language en