scholarly journals Coupled-channels analyses for large-angle quasi-elastic scattering in massive systems

2008 ◽  
Vol 77 (3) ◽  
Author(s):  
Muhammad Zamrun F. ◽  
K. Hagino ◽  
S. Mitsuoka ◽  
H. Ikezoe
Keyword(s):  
Elastic Scattering ◽  
Large Angle ◽  
Quasi Elastic Scattering ◽  
Coupled Channels

Role of triple phonon excitations in large angle quasi-elastic scattering of very heavy mass systems

2016 ◽  
Vol 25 (08) ◽  
pp. 1650054
Author(s):  
Muhammad Firihu Zamrun
Keyword(s):  
Experimental Data ◽  
Elastic Scattering ◽  
Cross Section ◽  
Large Angle ◽  
Elastic Cross Section ◽  
Triple Quadrupole ◽  
Quasi Elastic Scattering ◽  
Coupled Channels ◽  
Barrier Distribution

We study the effect of multi-phonon excitations on large-angle quasi-elastic scattering of massive systems using the full order coupled-channels formalism. We especially investigate the role of triple phonon excitations of the target and projectile nuclei on the quasi-elastic scattering cross-section as well as the barrier distribution for [Formula: see text]Cr, [Formula: see text]Fe, [Formula: see text]Ni and [Formula: see text]Zn + [Formula: see text]Pb systems. It is shown that the calculations taken into account, the triple octupole phonon excitations of the target and triple quadrupole phonon excitations of the projectile for these systems can explain the experimental data of the quasi-elastic cross-section and the quasi-elastic barrier distribution. These results indicate that the coupled-channels formalism is still valid even for the very heavy mass systems.

FUSION BARRIER DISTRIBUTIONS IN 20,22Ne+natNi

2005 ◽  
Vol 14 (03) ◽  
pp. 341-345 ◽  
Author(s):  
Ł. ŚWIDERSKI ◽  
E. PIASECKI ◽  
P. CZOSNYKA ◽  
T. KROGULSKI ◽  
N. ROWLEY
Keyword(s):  
Elastic Scattering ◽  
Fair Agreement ◽  
Fusion Barrier ◽  
Deformation Parameters ◽  
Quasi Elastic Scattering ◽  
Coupled Channels

Barriers height distributions for 20,22 Ne on nat Ni have been measured using quasi-elastic scattering at backward angles. The results have been compared to coupled-channels calculations performed with the CCQUEL code. A fair agreement with data has been obtained if the values of a hexadecapole deformation parameters of 20 Ne and 22 Ne are reduced by a factor of 2 with respect to their previously quoted values.

HOW MANY FUSION BARRIERS?

2004 ◽  
Vol 13 (01) ◽  
pp. 315-320 ◽  
Author(s):  
L. SWIDERSKI ◽  
P. CZOSNYKA ◽  
M. KOWALCZYK ◽  
E. PIASECKI ◽  
K. PIASECKI ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Cross Sections ◽  
Fusion Barrier ◽  
Scattering Cross ◽  
Quasi Elastic Scattering ◽  
Coupled Channels ◽  
Scattering Cross Sections ◽  
Collective States

Fusion barrier distributions for the 20 Ne + 112,116,118 Sn systems have been extracted from quasi-elastic scattering cross sections measured at the Warsaw HIL Cyclotron. Results are compared to coupled-channels calculations performed with the CCFULL code. The overall widths of the distributions are reproduced on taking account of the low-lying collective states of the target and projectile but some puzzling discrepancies in their shapes remain to be explained.

Sign in / Sign up

Export Citation Format

Share Document