ALPHA-DECAY OF PB-186 AND HG-184 - THE INFLUENCE OF MIXING OF O+ STATES ON ALPHA-DECAY TRANSITION-PROBABILITIES

被引：61

作者：

WAUTERS, J ^{[1
]}

BIJNENS, N ^{[1
]}

FOLGER, H ^{[1
]}

HUYSE, M ^{[1
]}

HWANG, HY ^{[1
]}

KIRCHNER, R ^{[1
]}

VONSCHWARZENBERG, J ^{[1
]}

VANDUPPEN, P ^{[1
]}

机构：

[1] GESELL SCHWERIONENFORSCH INST DARMSTADT, D-64220 DARMSTADT, GERMANY

来源：

PHYSICAL REVIEW C | 1994年 / 50卷 / 06期

关键词：

D O I：

10.1103/PhysRevC.50.2768

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：

Fine structure in the α decay of mass-separated Pb186 and Hg184 has been studied at the GSI on-line mass separator. Alpha singles spectra as well as α-x-t and α-e-t coincidence events were collected. The α decay of Pb186 revealed feeding to a low-lying 0+ state at 328(12) keV in Hg182. This state can be interpreted as being the bandhead of the deformed rotational band observed previously in in-beam studies. In the α decay of Hg184, feeding towards the first excited 2+ state at 153 keV and the 02+ state at 478 keV in Pt180 was observed. The hindrance factor of the α decay towards the excited 0+ state gives information about the particle-hole character of the states connected in the α decay. A two-level mixing calculation is introduced. From the mixing in Pt and the α-decay hindrance factors, small mixing is deduced fro ground stattes of neutron-deficient Hg and Pb nuclei. © 1994 The American Physical Society.

引用

页码：2768 / 2773

页数：6

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