DEFORMATION DEPENDENCE OF MAGNETIC DIPOLE STRENGTH BELOW 4 MEV IN DOUBLY EVEN RARE-EARTH NUCLEI

被引:50
作者
HAMAMOTO, I
MAGNUSSON, C
机构
[1] Department of Mathematical Physics, Lund Institute of Technology, S-221 00 Lund
关键词
D O I
10.1016/0370-2693(91)90960-X
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We show: (1) In the presence of the pair correlation the M1 transition strength calculated in the deformed oscillator model has a dependence on the quadrupole deformation parameter delta which is considerably stronger than linear and, in fact, it varies quadratically with delta in the limit of small deformation; (2) The deformation dependence in samarium isotopes calculated using the quasiparticle random phase approximation (QRPA) reproduces the qualitative behaviour of the recent experimental data of Ziegler, Rangacharyulu, Richter and Spieler.
引用
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页码:6 / 10
页数:5
相关论文
共 7 条
[1]   ROTATIONAL ISOVECTOR K-PI=1+ MODE IN DEFORMED-NUCLEI [J].
BES, DR ;
BROGLIA, RA .
PHYSICS LETTERS B, 1984, 137 (3-4) :141-144
[2]  
Bohr Aa., 1975, NUCL STRUCTURE, VII
[3]   SINGLE-PARTICLE MODEL CALCULATIONS FOR DEFORMED-NUCLEI OF SPHEROIDAL AND NON-SPHEROIDAL SHAPES [J].
EHRLING, G ;
WAHLBORN, S .
PHYSICA SCRIPTA, 1972, 6 (2-3) :94-108
[4]   STRUCTURE OF LOW-LYING K-PI = 1+ MODE IN A MICROSCOPIC MODEL [J].
HAMAMOTO, I ;
ABERG, S .
PHYSICA SCRIPTA, 1986, 34 (6A) :697-702
[5]   MICROSCOPIC DESCRIPTION OF A LOW-LYING KPI=1+ MODE IN GD-156 [J].
HAMAMOTO, I ;
ABERG, S .
PHYSICS LETTERS B, 1984, 145 (3-4) :163-166
[6]  
MAGNUSSON C, IN PRESS PHYS SCR
[7]   ORBITAL MAGNETIC DIPOLE STRENGTH IN SM-148, SM-150, SM-152, SM-154, AND NUCLEAR-DEFORMATION [J].
ZIEGLER, W ;
RANGACHARYULU, C ;
RICHTER, A ;
SPIELER, C .
PHYSICAL REVIEW LETTERS, 1990, 65 (20) :2515-2518