Decay of the high-spin isomer in 160Re: Changing single-particle structure beyond the proton drip line

被引：15

作者：

Darby, I. G. ^{[1
,2
]}

Page, R. D. ^{[2
]}

Joss, D. T. ^{[2
]}

Simpson, J. ^{[3
]}

Bianco, L. ^{[2
]}

Cooper, R. J. ^{[2
]}

Eeckhaudt, S. ^{[4
]}

Erturk, S. ^{[5
]}

Gall, B. ^{[6
]}

Grahn, T. ^{[2
,4
]}

Greenlees, P. T. ^{[4
]}

Hadinia, B. ^{[7
]}

Jones, P. M. ^{[4
]}

Judson, D. S. ^{[2
]}

Julin, R. ^{[4
]}

Juutinen, S. ^{[4
]}

Ketelhut, S. ^{[4
]}

Leino, M. ^{[4
]}

Leppanen, A. -P. ^{[4
]}

Nyman, M. ^{[4
]}

Rahkila, P. ^{[4
]}

Saren, J. ^{[4
]}

Scholey, C. ^{[4
]}

Steer, A. N. ^{[4
]}

Uusitalo, J. ^{[4
]}

Venhart, M. ^{[4
]}

机构：

[1] Katholieke Univ Leuven, Inst Kern & Stralingsfys, B-3001 Louvain, Belgium

[2] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England

[3] STFC Daresbury Lab, Warrington WA4 4AD, Cheshire, England

[4] Univ Jyvaskyla, Dept Phys, FIN-40014 Jyvaskyla, Finland

[5] Nigde Univ, Fen Ebebiyat Falkultesi, Fiz Bolumu, Nigde, Turkey

[6] ULP Strasbourg, CNRS, IN2P3, IPHC, F-67037 Strasbourg 2, France

[7] Royal Inst Technol, Dept Phys, SE-10691 Stockholm, Sweden

来源：

PHYSICS LETTERS B | 2011年 / 695卷 / 1-4期

基金：

芬兰科学院; 英国科学技术设施理事会;

关键词：

NUCLEAR REACTIONS Ni-58+Cd-106 at 290; 300 MeV beam energy; enriched targets; Gas-filled recoil separator; Si and Ge strip detectors; Measured E gamma; t1/2; NUCLEI; EMISSION; RADIOACTIVITY; DISCOVERY; TA-156;

D O I：

10.1016/j.physletb.2010.10.052

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A new high-spin isomeric state (t(1/2) = 2.8 +/- 0.1 mu s) in Re-160 has been identified. This high-spin isomer is unique in that it only decays by gamma-decay and not by proton or alpha-particle emission as is the case in every other proton emitter between Z = 64 and 80. Shell model calculations indicate how the convergence of the h(9/2) and f(7/2) neutron levels in this region could open up a gamma-decay path from the high-spin isomer to the low-spin ground state of 160Re. providing a natural explanation for this anomalous absence of charged-particle emission. The consequences of these observations for future searches for proton emission from even more exotic nuclei and in-beam spectroscopic studies are considered. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：78 / 81

页数：4

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