On the Fusion of Neutron/ Proton-Rich Colliding Nuclei Using Isospin-Dependent Potentials

Ishwar  Dutt; Maninder  Kaur

doi:10.15415/jnp.2014.12012

Authors

Ishwar Dutt School of Applied Sciences, Chitkara University, Himachal Pradesh-174 103, India.; Department of Physics, Panjab University, Chandigarh-160014, India.
Maninder Kaur Department of Physics, Panjab University, Chandigarh-160014, India.

DOI:

https://doi.org/10.15415/jnp.2014.12012

Keywords:

Heavy-ion fusion reaction, proximity potential, fusion barriers and cross sections

Abstract

By using different isospin dependent proximity-type potentials, we performed a detailed study of neutron/proton-rich colliding nuclei with N/Z ratio between 0.5 and 2.0. Isotopes of three different series namely, Ne-Ne, Ca-Ca, and Zr-Zr are taken into account. A monotonous increase (decrease) in the fusion barrier positions (heights) using a unified second order nonlinear parametrization in the normalized fusion barrier positions and heights with (N/Z−1) is presented. These predictions are in good agreement with the available theoretical as well as experimental results. The fusion probabilities, however shows linear dependence. Further, the neutron/proton content plays dominant role at near barrier energies only. Our results are also independent of the model used as well as reaction partner and isospin content. More experiments are needed to verify our predictions.

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