Fine structure in the α decay of high-spin isomers in 155Lu and 156Hf

被引：3

作者：

Parr, E. ^{[1
]}

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

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

Ali, F. A. ^{[1
,7
,8
]}

Auranen, K. ^{[2
,9
]}

Capponi, L. ^{[3
,4
,10
]}

Grahn, T. ^{[2
]}

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

Henderson, J. ^{[5
,11
]}

Herzan, A. ^{[2
,12
]}

Jakobsson, U. ^{[2
,13
]}

Julin, R. ^{[2
]}

Juutinen, S. ^{[2
]}

Konki, J. ^{[2
,14
]}

Labiche, M. ^{[6
]}

Leino, M. ^{[2
]}

Mason, P. J. R. ^{[6
]}

McPeake, C. ^{[1
]}

O'Donnell, D. ^{[1
,3
]}

Pakarinen, J. ^{[2
]}

Papadakis, P. ^{[1
,2
]}

Partanen, J. ^{[2
]}

Peura, P. ^{[2
]}

Rahkila, P. ^{[2
]}

Revill, J. P. ^{[1
]}

Ruotsalainen, P. ^{[2
]}

Sandzelius, M. ^{[2
]}

Saren, J. ^{[2
]}

Scholey, C. ^{[2
]}

Simpson, J. ^{[6
]}

Smith, J. F. ^{[3
,4
]}

Smolen, M. ^{[3
,4
]}

Sorri, J. ^{[2
]}

Stolze, S. ^{[2
,9
]}

Thornthwaite, A. ^{[1
]}

Uusitalo, J. ^{[2
]}

机构：

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

[2] Univ Jyvaskyla, Dept Phys, POB 35, FI-40014 Jyvaskyla, Finland

[3] Univ West Scotland, Sch Engn & Comp, Paisley PA1 2BE, Renfrew, Scotland

[4] Scottish Univ Phys Alliance, Glasgow G12 8QQ, Lanark, Scotland

[5] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England

[6] STFC Daresbury Lab, Nucl Phys Grp, Warrington WA4 4AD, Cheshire, England

[7] Univ Sulaimani, Coll Educ, Dept Phys, POB 334, Sulaimani, Kurdistan Regio, Iraq

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

[9] Argonne Natl Lab, Phys Div, Argonne, IL 60439 USA

[10] Horia Hulubei Natl Inst Res Phys & Nucl Engn, ELI NP, Bucharest, Romania

[11] Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA

[12] Slovak Acad Sci, Inst Phys, SK-84511 Bratislava, Slovakia

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

[14] CERN, CH-1211 Geneva 23, Switzerland

来源：

PHYSICAL REVIEW C | 2018年 / 98卷 / 02期

基金：

欧盟第七框架计划; 芬兰科学院; 英国科学技术设施理事会;

关键词：

NEUTRON-DEFICIENT ISOTOPES; TOTAL DATA READOUT; SENIORITY ISOMERISM; DRIP-LINE; 82; NUCLEI; EXOTIC N; SPECTROSCOPY; STATE; IDENTIFICATION; RADIOACTIVITY;

D O I：

10.1103/PhysRevC.98.024321

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 a decay of high-spin isomers in Lu-155( 25/2(-)) and Hf-156(8(+))has been studied for the first time using alpha gamma- coincidence analysis. Three new a decays from Lu-155(25/2(-)) and two from Hf-156(8(+)) have been identified, populating seniority s > 1 states in the N = 82 nuclei Tm-151 and Yb-152, respectively. The reduced hindrance factors of the a decays support the previous configuration assignments of the populated states. This is the first observation of states with excitation energy greater than 1.5 MeV being populated following a decay in nuclei outside of the Pb-208 region.

引用

页数：8

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