PreprintCC BY 4.0arXiv
A novel projected shell model method for nuclear level density
Abstract
We introduce a shell model method for calculating nuclear level density (NLD) generally applicable for arbitrarily heavy deformed nuclei. The method is novel because of our use of physical guidance for the construction of its configuration space and the computational breakthrough with the Pfaffian algorithm. Taking a well deformed even-even 164Dy nucleus as an example, we solve exactly the eigenvalue equation to obtain a large ensemble of eigenstates of angular momentum and parity. Our results indicate a potential need to revise some common understanding of the structural behavior in the pair-breaking region where the structure changes in NLD of the compound nuclei would be sensitive for cross-sections of neutron capture.
Related
- Neural-Network-Based Variational Method in Nuclear Density Functional Theory: Application to the Kohn--Sham method
- A novel method to determine the 4th moment of the 208Pb charge density from low-momentum-transfer electron scattering
- Reduced-basis method for linear response within nuclear density functional theory
- Systematic study of E2 matrix elements in the framework of the Triaxial Projected Shell Model
- From Projected Subspaces to Full-Space Implementations: Representation-Equivalence Audits for Open-Shell ADAPT-VQE
BibTeX
@misc{sun2026novel,
title = {{A novel projected shell model method for nuclear level density}},
author = {Yang Sun and Jiaqi Wang and Saumi Dutta and Long-Jun Wang},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.26248},
eprint = {2609.26248},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.26248},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - A novel projected shell model method for nuclear level density
AU - Yang Sun
AU - Jiaqi Wang
AU - Saumi Dutta
AU - Long-Jun Wang
PY - 2026
DA - 2026/09/01
PB - arXiv
DO - 10.48550/arxiv.2609.26248
UR - https://arxiv.org/abs/2609.26248
AB - We introduce a shell model method for calculating nuclear level density (NLD) generally applicable for arbitrarily heavy deformed nuclei. The method is novel because of our use of physical guidance for the construction of its configuration space and the computational breakthrough with the Pfaffian algorithm. Taking a well deformed even-even ^164Dy nucleus as an example, we solve exactly the eigenvalue equation to obtain a large ensemble of eigenstates of angular momentum and parity. Our results indicate a potential need to revise some common understanding of the structural behavior in the pair-breaking region where the structure changes in NLD of the compound nuclei would be sensitive for cross-sections of neutron capture.
ER -