STUDY OF HIGH-SPIN STATES IN THE NUCLEUS EU-149

被引：16

作者：

URBAN, W

BACELAR, JC

JONGMAN, JR

NOORMAN, RF

DEVOIGT, MJA

NYBERG, J

SLETTEN, G

BERGSTROM, M

RYDE, H

机构：

[1] KERNFYS VERSNELLER INST,9747 AA GRONINGEN,NETHERLANDS

[2] NIELS BOHR INST,DK-4000 ROSKILDE,DENMARK

[3] LUND UNIV,DEPT PHYS,S-22362 LUND,SWEDEN

来源：

NUCLEAR PHYSICS A | 1994年 / 578卷 / 1-2期

关键词：

LA-139(C-13C; 3N); E=58 MEV; MEASURED E-GAMMA; I-GAMMA; GAMMA-GAMMA(T); DCO RATIOS; GAMMA LINEAR POLARIZATION; SIGMA (E-GAMMA); EU-149 DEDUCED LEVELS; J; PI; GAMMA-MULTIPOLARITY NORDBALL MULTI-GE DETECTOR ARRAY; BAF2 MULTIPLICITY FILTER;

D O I：

10.1016/0375-9474(94)90976-8

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：

In-beam studies of high-spin states in Eu-149 are reported. The level scheme extends up to an excitation energy of 7.1 MeV and a spin of 55/2HBAR. This nucleus is weakly deformed and most of the high-spin structure is interpreted through its multi-particle-hole nature. Octupole-phonon vibrations coupled to multi-particle-hole states are observed and discussed. In contrast with the Z less-than-or-equal-to 62 isotones, there is no conclusive evidence in Eu-149 for octupole deformation induced by rotation.

引用

页码：204 / 224

页数：21

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