Low-spin studies of the πh11/2νh11/2 structure in 134Pr -: art. no. 057301

被引：15

作者：

Roberts, SP ^{[1
]}

Ahn, T ^{[1
]}

Starosta, K ^{[1
]}

Koike, T ^{[1
]}

Chiara, CJ ^{[1
]}

Vaman, C ^{[1
]}

机构：

[1] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

来源：

PHYSICAL REVIEW C | 2003年 / 67卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.67.057301

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：

Low-spin states built on the pih(11/2)nuh(11/2) configuration in Pr-134 have been studied using a Sn-119(F-19,4n) fusion-evaporation reaction. A planar low-energy photon spectrometer along with a low-Z target chamber was utilized in an array of five high-purity Ge detectors for the purpose of measuring low-energy gamma rays. A 39.3-keV gamma ray was discovered as a new transition at the bottom of the band. The transition was found to have an M1 multipolarity, determined from the internal conversion coefficients evaluated from the missing transition intensity. The new bandhead was assigned and was identified as an isomeric state with a mean lifetime of tau=4.6(1) ns. This bandhead decays by a 306-keV gamma-ray transition that was found to have an E1 multipolarity through the analysis of the angular distribution asymmetry.

引用

页码：573011 / 573014

页数：4

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