Nuclear level density parameter<i>—</i>its dependence on spin and temperature

Abstract

The effect of temperature and angular momentum on the nuclear level density parameter is investigated. Pairing correlations and deformation degrees of freedom are also included. The level density parameter fluctuates at low temperatures and the effect of angular momentum is very pronounced at low temperatures. The variation of shell correction with angular momentum is also studied. Results for the nuclei $_{{\mathrm{}}^{1}{\mathrm{}}_{66}^{58}}\mathrm{Dy}$, $_{{\mathrm{}}^{1}{\mathrm{}}_{78}^{94}}\mathrm{Pt}$, and $_{{\mathrm{}}^{1}{\mathrm{}}_{70}^{70}}\mathrm{Yb}$ are presented.