HIGH-LYING 3-QUASI-PARTICLE BANDS AND SIGNATURE SPLITTING IN RB-81

被引：26

作者：

DORING, J

SCHWENGNER, R

FUNKE, L

ROTTER, H

WINTER, G

CEDERWALL, B

LIDEN, F

JOHNSON, A

ATAC, A

NYBERG, J

SLETTEN, G

机构：

[1] FORSCHUNGSZENTRUM ROSSENDORF, INST KERN & HADRONENPHYS, D-01314 DRESDEN, GERMANY

[2] ROYAL INST TECHNOL, DEPT PHYS, S-10405 STOCKHOLM, SWEDEN

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

来源：

PHYSICAL REVIEW C | 1994年 / 50卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.50.1845

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：

Two new high-lying level sequences of negative parity have been identified in the odd-proton nucleus Rb-81 by in-beam gamma-ray spectroscopy using the reactions Br-79(alpha, 2n) at 27 MeV and Zn-68(F-19, alpha2n) at 72 MeV. One sequence, dominated by M1 transitions, is interpreted as a three-quasiparticle band predominantly containing a neutron in the p1/2, p3/2, or f5/2 subshell coupled to g9/2 proton and g9/2 neutron excitations. The other new level sequence forms the three-quasiparticle extension of the unfavored negative-parity band, but the states decay also by E1 transitions. The signature splitting points to a configuration where an aligned g9/2 proton pair is involved.

引用

页码：1845 / 1850

页数：6

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