Combinatorial Level Densities from a Microscopic Relativistic Structure Model

Details Combinatorial Level Densities from a Microscopic Relativistic Structure Model Combinatorial Level Densities from a Microscopic Relativistic Structure Model

2002-05-27

arxiv.org/abs/nucl-th/0205068v2

Nucl.Phys.A717:21-43,2003

Physics

Nuclear Physics

Nuclear Theory

22 pages, 5 figures, revised version, to appear in Nucl. Phys. A

Scientific paper

10.1016/S0375-9474(03)00614-6

A new model for calculating nuclear level densities is investigated. The single-nucleon spectra are calculated in a relativistic mean-field model with energy-dependent effective mass, which yields a realistic density of single-particle states at the Fermi energy. These microscopic single-nucleon states are used in a fast combinatorial algorithm for calculating the non-collective excitations of nuclei. The method, when applied to magic and semi-magic nuclei, such as $^{60}$Ni, $^{114}$Sn and $^{208}$Pb, reproduces the cumulative number of experimental states at low excitation energy, as well as the s-wave neutron resonance spacing at the neutron binding energy. Experimental level densities above 10 MeV are reproduced by multiplying the non-collective level densities by a simple vibrational enhancement factor. Problems to be solved in the extension to open-shell nuclei are discussed

Affiliated with

Also associated with

No associations

Rating

Combinatorial Level Densities from a Microscopic Relativistic Structure Model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Combinatorial Level Densities from a Microscopic Relativistic Structure Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combinatorial Level Densities from a Microscopic Relativistic Structure Model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-397277