Iranian Journal of Physics Research

Role of repulsive interactions in sub-barrier fusion cross sections

Document Type : Original Article

Authors

Arezou Hadikhani 1
Reza Gharaei 2
Seyed Ali Asghar Alavi 1

1 Department of Physics, Sciences Faculty, Hakim Sabzevari University, Sabzevar, Iran

2 Department of Physics, Sciences Faculty, Ferdowsi University of Mashhad, Mashhad, Iran

https://doi.org/10.47176/ijpr.26.1.82171
Abstract
An attempt has been made to modify the original version of the Aage Winther 1995 (AW95) potential by adding a positive Gaussian part as VRexp(-br2) to investigate the effect of the repulsive core on the sub-barrier fusion cross sections. In order to achieve this goal, we select and evaluate 6 heavy ion fusion reactions with 392≤Z1 Z2≤784 (including 58Ni+54Fe, 58Ni+58Ni, 64Ni+64Ni, 16O+208Pb, 28Si+64Ni, 28Si+100Mo). The obtained results reveal that the original version of the AW potential supplemented with Gaussian positive part successfully reproduces the experimental fusion excitation data for various considered systems.

Keywords

Heavy ion fusion reactions
Proximity formalism
Coupled-channels calculations
Fusion cross section
Subjects
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