Reliable calculations of level densities using statistical spectroscopy
| dc.creator | Nabi, Jameel-Un | |
| dc.creator | Johnson, Calvin W. | |
| dc.creator | Ormand, W. Erich | |
| dc.date | 2001-11-23 | |
| dc.date.accessioned | 2026-07-07T05:38:49Z | |
| dc.date.available | 2026-07-07T05:38:49Z | |
| dc.description | Nucleosynthesis calculations require nuclear level densities for hundreds or even thousands of nuclides. Ideally one would like to constrain these level densities by microscopically motivated yet computationally cheap models. A statistical approach suggests that low moments of the Hamiltonian might be sufficient. Recently Zuker proposed a simple combinatoric formula for level densities based upon the binomial distribution. We rigorously test the binomial formula against full scale shell-model diagonalization calculations for selected $sd$- and $pf$-shell nuclides and also against Monte Carlo path integration calculations. We find that the fourth moment is as important as the third moment to a good description of the level density, as well as partitioning of the model space into subspaces. | |
| dc.description | 21 pages, 6 figures | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0111067 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0111067 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/81751 | |
| dc.subject | Nuclear Theory | |
| dc.title | Reliable calculations of level densities using statistical spectroscopy | |
| dc.type | text |