Parity-Projected Shell Model Monte Carlo Level Densities for fp-shell Nuclei

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dc.creatorÖzen, C.
dc.creatorLanganke, K.
dc.creatorMartinez-Pinedo, G.
dc.creatorDean, D. J.
dc.date2007-03-26
dc.date.accessioned2026-07-07T10:22:48Z
dc.date.available2026-07-07T10:22:48Z
dc.descriptionWe calculate parity-dependent level densities for the even-even isotopes 58,62,66 Fe and 58 Ni and the odd-A nuclei 59 Ni and 65 Fe using the Shell Model Monte Carlo method. We perform these calculations in the complete fp-gds shell-model space using a pairing+quadrupole residual interaction. We find that, due to pairing of identical nucleons, the low-energy spectrum is dominated by positive parity states. Although these pairs break at around the same excitation energy in all nuclei, the energy dependence of the ratio of negative-to-positive parity level densities depends strongly on the particular nucleus of interest. We find equilibration of both parities at noticeably lower excitation energies for the odd-A nuclei 59 Ni and 65 Fe than for the neighboring even-even nuclei 58 Ni and 66 Fe.
dc.description5 pages, 4 figures, submitted to Phys. Rev. C
dc.identifierhttps://arxiv.org/abs/nucl-th/0703084
dc.identifierhttp://arxiv.org/abs/nucl-th/0703084
dc.identifierPhys.Rev.C75:064307,2007
dc.identifierdoi:10.1103/PhysRevC.75.064307
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175643
dc.subjectNuclear Theory
dc.titleParity-Projected Shell Model Monte Carlo Level Densities for fp-shell Nuclei
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