Modern shell-model diagonalizations with realistic NN forces
摘要
The spectral and statistical properties of nuclei V and Cr are studied in the framework of nuclear shell model. A microscopical effective Hamiltonian derived from the CD-Bonn \textit{NN} potential is employed. The calculations are preliminary results of a newly developed parallel shell-model code. Calculations with the realistic \textit{NN} interaction reproduce well the ground-state rotational band and backbending phenomenon in Cr. A sudden alignment of all particles is seen above the backbend. The nearest-neighbour spacing distribution in V is presented and compared with the predictions of random-matrix theory. Significant deviation from the single Gaussian-orthogonal-ensemble distribution is obtained, indicating that the isospin-symmetry breaking is not so strong in the nucleus.
引用
@article{arxiv.nucl-th/0701036,
title = {Modern shell-model diagonalizations with realistic NN forces},
author = {C. Qi and F. R. Xu},
journal= {arXiv preprint arXiv:nucl-th/0701036},
year = {2007}
}
备注
6 pages, 7 figures