Calculation of exciton densities in SMMC

Abstract

We develop a shell-model Monte Carlo (SMMC) method to calculate densities of states with varying exciton (particle-hole) number. We then apply this method to the doubly closed-shell nucleus 40Ca in a full 0s-1d-0f-1p shell-model space and compare our results to those found using approximate analytic expressions for the partial densities. We find that the effective one-body level density is reduced by approximately 22% when a residual two-body interaction is included in the shell model calculation.

10 pages, 4 figures

References in corpus (3)

• Total and Parity-Projected Level Densities of Iron-Region Nuclei in the Auxiliary Fields Monte Carlo Shell Model
• Shell Model Monte Carlo studies of neutron-rich nuclei in the 1s-0d-1p-0f shells
• Particle-hole state densities with non-equidistant single-particle levels

Cited by in corpus (4)

• Global study of quadrupole correlation effects
• From finite nuclei to the nuclear liquid drop: leptodermous expansion based on the self-consistent mean-field theory
• Quantum Monte Carlo method for the ground state of many-boson systems
• Pairing Reentrance Phenomenon in Heated Rotating Nuclei in the Shell Model Monte Carlo Approach