EVIDENCE FOR WEAK-COUPLING IN PM-145

被引:9
作者
GLASMACHER, T
CAUSSYN, DD
COTTLE, PD
JOHNSON, TD
KEMPER, KW
WOMBLE, PC
机构
[1] Department of Physics, Florida State University, Tallahassee
来源
PHYSICAL REVIEW C | 1992年 / 45卷 / 04期
关键词
D O I
10.1103/PhysRevC.45.1619
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
States in Pm-145 were studied in the reaction Te-130(F-19,4n) at a beam energy of 75 MeV using techniques of in-beam gamma-ray and conversion electron spectroscopy. Measurements were made of gamma-gamma coincidences, gamma-ray angular distributions, conversion electrons, and excitation functions between 70 and 85 MeV. The reduced B(E3) transition strength for the 795 keV (11/2- --> 5/2g.s.+) transition was determined to be 7.8(18) Weisskopf units, supporting the interpretation of the 11/2- state as a h11/2 proton state. A negative-parity sequence built on the 11/2- state as well as eleven new states above the 1503 keV 15/2+ state were found. A weak coupling model can explain the structure of the deduced decay scheme up to an energy of 2.5 MeV.
引用
收藏
页码:1619 / 1627
页数:9
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