A new technique to determine fusion barrier heights using proximity potentials

¹ Department of Physics, Panjab University, Chandigarh - 160 014, India
² S. V. National Institute of Technology, Surat - 395007, India

^a e-mail: rajkumari80pu@gmail.com

Published online: 29 January 2015

Abstract

We develop a new technique to calculate fusion barrier heights of any fixed target reaction series. We calculate the barrier heights for the fusion reactions of ¹¹⁹Sn and ¹⁹⁷Au targets using this technique. This technique is simple and very useful for estimating the fusion barrier heights for those reactions for which empirical values are not available. A formula is derived by performing theoretical calculations using different versions of proximity potential. Using this formula, we can predict the barrier height for the fusion reaction of any projectile with ¹¹⁹Sn or ¹⁹⁷Au target using the empirical barrier height for the fusion reaction of same projectile with ⁶²Ni target. In order to check the accuracy of this technique, the fusion parameters calculated by this new technique are compared with the fusion parameters calculated by using parameterized formulae presented in a systematic study conducted by using double folding model.