Spin projection in the shell model Monte Carlo method and the spin distribution of nuclear level densities

被引：95
作者：
Alhassid, Y.
Liu, S.
Nakada, H.
机构：
[1] Yale Univ, Ctr Theoret Phys, Sloane Phys Lab, New Haven, CT 06520 USA
[2] Chiba Univ, Dept Phys, Chiba 2638522, Japan
来源：
PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 16期
关键词：
D O I：
10.1103/PhysRevLett.99.162504
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We introduce spin projection methods in the shell model Monte Carlo approach and apply them to calculate the spin distribution of level densities for iron-region nuclei using the complete (pf + g(9/2)) shell. We compare the calculated distributions with the spin-cutoff model and extract an energy-dependent moment of inertia. For even-even nuclei and at low excitation energies, we observe a significant suppression of the moment of inertia and odd-even staggering in the spin dependence of level densities.
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页数：4
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