HIGH-SPIN STATES IN K-43

被引：8

作者：

BEHBEHANI, AH ^{[1
]}

ALNASER, AM ^{[1
]}

GREEN, LL ^{[1
]}

JAMES, AN ^{[1
]}

LISTER, CJ ^{[1
]}

RAMMO, NRF ^{[1
]}

SHARPEYSCHAFER, JF ^{[1
]}

SHEPPARD, HM ^{[1
]}

NOLAN, PJ ^{[1
]}

机构：

[1] SRC,DARESBURY LAB,WARRINGTON WA4 4AD,LANCASHIRE,ENGLAND

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 1979年 / 5卷 / 07期

关键词：

D O I：

10.1088/0305-4616/5/7/011

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 nucleus 43K has been studied via the 40Ar( alpha ,p gamma )43K reaction, using solid targets of natural argon. A gamma - gamma coincidence experiment established five new levels at excitation energies of 1850, 2048, 2509, 3115 and 3139 keV. Gamma-ray angular distributions and linear polarisations were measured at an alpha-particle energy of 17.0 MeV. The analysis of these data yielded spin and parity assignments of J pi=7-/2, 7+/2, 11-/2 and 15-/2 for the levels at 738, 1510, 1850 and 3115 keV respectively. Mean lifetimes were measured for four levels using the DSAM: 1510 keV, 8.2+or-2.1 ps; 2048 keV, 2.4+or-0.8 ps; 1850 keV, 6.7+or-1.7 ps; 3115 keV, 5.0+or-1.5 ps. A lower limit of 7 ps was obtained for the lifetimes of the levels at 1207 keV and 2509 keV.

引用

页码：971 / 979

页数：9

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