Relative importance of energy dependent diffuseness parameter and barrier position in the analysis of fusion excitation function data

Rajesh Kharab,Manjeet Singh,S Lunardi,A Dainese,J.J Valiente-Dobon,A Nannini,P.G Bizzeti,M Chiari,R Menegazzo,P Di Nezza,C Bucci,C Signorini

doi:10.1051/epjconf/20146603043

Abstract

We have investigated the relative importance of the energy dependence of diffuseness parameter and barrier position in the description of the fusion excitation function data of some heavy ion systems in near barrier energy region. The effects of the energy dependent diffuseness parameter are found to be much more prominent in comparison to those of barrier position.

Highlights

The sub-barrier heavy ion fusion reactions provide a very good insight into nuclear structure and nuclear interaction [1,2,3,4]
We study the relative importance of the energy dependence of the diffuseness parameter and that of the barrier position in the analysis of fusion dynamics
The two-phonon and their mutual couplings are needed to be considered for the good agreement between coupled channel prediction and the fusion excitation function data

Summary

Introduction

The sub-barrier heavy ion fusion reactions provide a very good insight into nuclear structure and nuclear interaction [1,2,3,4]. We study the relative importance of the energy dependence of the diffuseness parameter and that of the barrier position in the analysis of fusion dynamics. Various dynamical effects are properly mocked up by the energy dependent potential, it is sufficient to use the one dimensional barrier penetration model to describe the fusion excitation process.

Results

Conclusion