Study of excited states and observation of collective level structures in the odd-odd nucleus 194Bi

被引：0

作者：

Herzan, A. ^{[1
,2
,3
]}

Juutinen, S. ^{[3
]}

Auranen, K. ^{[3
]}

Grahn, T. ^{[3
]}

Greenlees, P. T. ^{[3
]}

Hauschild, K. ^{[3
,5
]}

Jakobsson, U. ^{[3
,6
]}

Julin, R. ^{[3
]}

Ketelhut, S. ^{[3
]}

Leino, M. ^{[3
]}

Lopez-Martens, A. ^{[3
,5
]}

Lonnroth, T. ^{[4
]}

Nieminen, P. ^{[3
,7
]}

Nyman, M. ^{[3
,8
]}

Partanen, J. ^{[3
]}

Peura, P. ^{[3
,9
]}

Rahkila, P. ^{[3
]}

Ruotsalainen, P. ^{[3
]}

Sandzelius, M. ^{[3
]}

Saren, J. ^{[3
]}

Scholey, C. ^{[3
,10
]}

Slotte, J. M. K. ^{[4
]}

Sorri, J. ^{[3
,11
]}

Stolz, S. ^{[3
,12
]}

Uusitalo, J. ^{[3
]}

机构：

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

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

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

[4] Abo Akad Univ, Fac Sci & Engn, Phys, Turku 20500, Finland

[5] IN2P3 CNRS, CSNSM, F-91405 Orsay, France

[6] Univ Helsinki, Dept Chem, Lab Radiochem, POB 55, Helsinki 00014, Finland

[7] Fortum Oyj, Power Div, POB 100, Fortum 00048, Finland

[8] Joint Res Ctr, European Commiss, Retieseweg 111, B-2440 Geel, Belgium

[9] Univ Helsinki, Helsinki Inst Phys, POB 64, Helsinki 00014, Finland

[10] MTC Ltd, Ansty Pk, Coventry CV7 9JU, W Midlands, England

[11] Radiat & Nucl Safety Author STUK, Laippatie 4, Helsinki 00880, Finland

[12] Argonne Natl Lab, 9700 Cass Ave, Lemont, IL 60439 USA

来源：

EUROPEAN PHYSICAL JOURNAL A | 2020年 / 56卷 / 06期

基金：

芬兰科学院; 英国科学技术设施理事会;

关键词：

HIGH-SPIN STATES; GAMMA-RAY SPECTROSCOPY; NEUTRON-DEFICIENT; SHEARS MECHANISM; 1ST OBSERVATION; ALPHA-DECAY; BANDS; ROTATION; MODEL;

D O I：

10.1140/epja/s10050-020-00167-z

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：

High-spin states of the odd-odd Bi-194 nucleus have been studied by means of nuclear spectroscopy for the first time. Two low-lying rotational bands were observed. The positive-parity band built on a short-lived isomeric state 633 keV above the alpha and beta decaying long-lived (10(-)) state is assigned a pi i(13/2)circle times nu i(13/2)(-1) configuration, while the other band is attributed to the pi h(9/2) circle times nu i(13/2)(-1) configuration. Both of these bands are assumed to have oblate shape. Three band-like structures composed predominantly of Delta I = 1 transitions were also found. One of the shears band candidates is firmly linked to the lower lying level structures whereas for the other two links to lower-lying structures remain missing.

引用

页数：12

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