Low-energy structure of 40S through 40P β decay -: art. no. 064318

被引：18

作者：

Winger, JA ^{[1
]}

Mantica, PF

Ronningen, RM

Caprio, MA

机构：

[1] Mississippi State Univ, Dept Phys & Astron, Mississippi State, MS 39762 USA

[2] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA

[3] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

[4] Yale Univ, AW Wright Nucl Struct Lab, New Haven, CT 06520 USA

[5] Yale Univ, Dept Phys, New Haven, CT 06520 USA

来源：

PHYSICAL REVIEW C | 2001年 / 64卷 / 06期

关键词：

D O I：

10.1103/PhysRevC.64.064318

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：

Results from the study of the beta decay of P-40. produced in the fragmentation of a Ca-48 beam, are presented. The P-40 half-life and delayed-neutron emission probability have been measured to be 153 +/- 8 ms and 15.8 +/- 2.1%, respectively. On the basis of gamma -ray singles and gamma gamma coincidence data. 21 gamma rays have been assigned to the decay. Three gamma rays are assigned to excited states in S-39 populated in the delayed-neutron branch while a total of 15 gamma rays were placed in a level scheme for S-40 with nine excited states up to 5 MeV. The structure of low-energy states in S-40 has been fit using the geometrical collective model that indicates the structure to be consistent with that of an anharmonic oscillator with a soft potential.

引用

页码：643181 / 6431811

页数：11

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