Speaker
Description
In present work, we have taken the expansion of this two variable (Z,N) Taylor series upto fourth order of its derivative and have obtained an elaborate as well as a concise-averaged expression for the estimation of these residual n-p interactions. The parameters of fitting seem to differ by an appreciable amount for different species of the nuclei, thus, separate parameters for even-even, odd- A and odd-odd nuclei are proposed. In order to eliminate the influence of deformations in the nuclei, the mass region we have worked on is 50 ≤ A ≤ 253. The semi-empirical data hence obtained has been used to fit the parameters for theoretical expressions proposed already. The recently updated AME-2020 has been used for binding energies of the relevant nuclei. Furthermore, this study proposes a dependence of these interactions on neutron excess and evaluates it in comparison with earlier models.
