REDUCTION OF NUCLEAR MOMENT OF INERTIA DUE TO PAIRING INTERACTION

被引:131
作者
ZENG, JY
JIN, TH
ZHAO, ZJ
机构
[1] CHINA CTR ADV SCI & TECHNOL, CTR THEORET PHYS, WORLD LAB, BEIJING 100080, PEOPLES R CHINA
[2] CHINESE ACAD SCI, INST THEORET PHYS, BEIJING 100080, PEOPLES R CHINA
来源
PHYSICAL REVIEW C | 1994年 / 50卷 / 03期
关键词
D O I
10.1103/PhysRevC.50.1388
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
The BCS theoretical values of the moments of inertia of even-even nuclei are systematically smaller than the experimental ones by a factor of 10-40%. This long-standing discrepancy disappears in the particle-number-conserving treatment for the cranked shell model, in which the blocking effects are taken into account exactly. The calculated moments of inertia satisfactorily reproduce the experimental data covering a large number of rare-earth even-even nuclei, whose deformations and single-particle states are well characterized (Lund systematics). The pairing interaction strength G is unambiguously determined by the even-odd mass difference. The reduction of the moment of inertia due to the antialignment effect of pairing interaction is discussed and no systematic excessive reduction is found.
引用
收藏
页码:1388 / 1397
页数:10
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