97 citations · 387 across the 30 of their papers we have counts for
5 papers · 2 filters
Heavy deformed nuclei in the shell model Monte Carlo method
Y. Alhassid, L. Fang, H. Nakada
We extend the shell model Monte Carlo approach to heavy deformed nuclei using a new proton-neutron formalism. The low excitation energies of such nuclei necessitate calculations at…
Effective shell model Hamiltonians from density functional theory: quadrupolar and pairing correlations
R. Rodriguez-Guzman, Y. Alhassid, G. F. Bertsch
We describe a procedure for mapping a self-consistent mean-field theory (also known as density functional theory) into a shell model Hamiltonian that includes quadrupole-quadrupole…
Large-scale prediction of the parity distribution in the nuclear level density and application to astrophysical reaction rates
D. Mocelj, T. Rauscher, G. Martinez-Pinedo +5
A generalized method to calculate the excitation-energy dependent parity ratio in the nuclear level density is presented, using the assumption of Poisson distributed independent qu…
Thermal Signatures of Pairing Correlations in Nuclei and Nanoparticles
Y. Alhassid
The Bardeen-Cooper-Schrieffer (BCS) mean-field theory of the pairing interaction breaks down for nuclei and ultra-small metallic grains (nanoparticles). Finite-temperature pairing…
Microscopic calculation of symmetry projected nuclear level densities
K. Van Houcke, S. M. A. Rombouts, K. Heyde +1
We present a quantum Monte Carlo method with exact projection on parity and angular momentum that is free of sign-problems for seniority-conserving nuclear interactions. This techn…