Empirical formulas for 14 MeV (n,p) cross sections

Abstract

Levkovskii's and Gardner's empirical formulas for 14 MeV neutron (n,p) cross sections can be shown to be mainly equivalent to the following approximation: [Formula: see text]subject to modifications from direct interaction. Here T is the nuclear temperature, given by 10/A1/2 and Vp′ is Dostrovsky's value of the effective Coulomb barrier. Qnp′ is the effective Q value calculated using the mass formula [Formula: see text]in which B and Z0/A are shell-independent parameters.