## NUCLEAR LEVEL DENSITY AT A=110-125Institute of Physics and Energetics, Obninsk, USSRThe analysis of (p,n)-reaction neutron evaporation spectra and neutron resonance density in the range A=110-125 using a generalized superfluid model results in a strong dependence of the ground state correlation function Δ _{0} and the asymptotic level density parameter ã on nucleon composition. Its origin is associated with the effect of the spherical proton shell Z=50 on Δ_{0}, and the deformed neutron shell N≈66 on ã.KEYWORDS: nuclear level density, neutron spectra, shell correction |