Characterizing the atomic mass surface beyond the proton drip line via α-decay measurements of the πs1/2 ground state of 165Re and the πh11/2 isomer in 161Ta

被引：9

作者：

Thornthwaite, A. ^{[1
]}

O'Donnell, D. ^{[1
]}

Page, R. D. ^{[1
]}

Joss, D. T. ^{[1
]}

Scholey, C. ^{[2
]}

Bianco, L. ^{[3
]}

Capponi, L. ^{[4
]}

Carroll, R. J. ^{[1
]}

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

Donosa, L. ^{[1
]}

Drummond, M. C. ^{[1
]}

Ertugral, F. ^{[5
]}

Grahn, T. ^{[2
]}

Greenlees, P. T. ^{[2
]}

Hauschild, K. ^{[2
,6
,7
]}

Herzan, A. ^{[2
]}

Jakobsson, U. ^{[2
]}

Jones, P. ^{[2
]}

Julin, R. ^{[2
]}

Juutinen, S. ^{[2
]}

Ketelhut, S. ^{[2
]}

Labiche, M. ^{[8
]}

Leino, M. ^{[2
]}

Lopez-Martens, A. ^{[2
,6
,7
]}

Mullholland, K. ^{[4
]}

Nieminen, P. ^{[2
]}

Peura, P. ^{[2
]}

Rahkila, P. ^{[2
]}

Rinta-Antila, S. ^{[2
]}

Ruotsalainen, P. ^{[2
]}

Sandzelius, M. ^{[2
]}

Saren, J. ^{[2
]}

Saygi, B. ^{[1
]}

Simpson, J. ^{[8
]}

Sorri, J. ^{[2
]}

Uusitalo, J. ^{[2
]}

机构：

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

[2] Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland

[3] Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada

[4] Univ W Scotland, Sch Engn, Paisley PA1 2BE, Renfrew, Scotland

[5] Sakarya Univ, Dept Phys, Fac Arts & Sci, TR-54100 Serdivan, Adapazari, Turkey

[6] CNRS, CSNSM, IN2P3, Paris, France

[7] Univ Paris 11, Paris, France

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

来源：

PHYSICAL REVIEW C | 2012年 / 86卷 / 06期

基金：

英国科学技术设施理事会; 芬兰科学院;

关键词：

NUCLEAR-DATA SHEETS; NEUTRON-DEFICIENT ISOTOPES;

D O I：

10.1103/PhysRevC.86.064315

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 alpha-decay chains originating from the pi s(1/2) and pi h(11/2) states in Au-173 have been investigated following fusion-evaporation reactions. Four generations of alpha radioactivities have been correlated with Au-173(m) leading to a measurement of the alpha decay of Ta-161(m). It has been found that the known alpha decay of Ta-161, which was previously associated with the decay of the ground state, is in fact the decay of an isomeric state. This work also reports on the first observation of prompt gamma rays feeding the ground state of Au-173. This prompt gamma radiation was used to aid the study of the alpha-decay chain originating from the pi s(1/2) state in Au-173. Three generations of alpha decays have been correlated with this state, leading to the observation of a previously unreported activity which is assigned as the decay of Re-165(g). This work also reports the excitation energy of an alpha-decaying isomer in Ta-161 and the Q(alpha) value of the decay of Ta-161(g). DOI:10.1103/PhysRevC.86.064315

引用

页数：6