Shape coexistence and isomeric states in neutron-rich 112Tc and 113Tc

被引：17

作者：

Bruce, A. M. ^{[1
]}

Lalkovski, S. ^{[1
]}

Bacelar, A. M. Denis ^{[1
]}

Gorska, M. ^{[2
]}

Pietri, S. ^{[2
,3
]}

Podolyak, Zs ^{[3
]}

Shi, Y. ^{[4
]}

Walker, P. M. ^{[3
]}

Xu, F. R. ^{[4
]}

Bednarczyk, P. ^{[2
]}

Caceres, L. ^{[2
]}

Casarejos, E. ^{[5
]}

Cullen, I. J. ^{[3
]}

Doornenbal, P. ^{[2
,6
]}

Farrelly, G. F. ^{[3
]}

Garnsworthy, A. B. ^{[3
]}

Geissel, H. ^{[2
]}

Gelletly, W. ^{[3
]}

Gerl, J. ^{[2
]}

Grebosz, J. ^{[2
,7
]}

Hinke, C. ^{[8
]}

Ilie, G. ^{[6
]}

Jaworski, G. ^{[9
,10
]}

Kojouharov, I. ^{[2
]}

Kurz, N. ^{[2
]}

Myalski, S. ^{[7
]}

Palacz, M. ^{[9
]}

Prokopowicz, W. ^{[2
]}

Regan, P. H. ^{[3
]}

Schaffner, H. ^{[2
]}

Steer, S. ^{[3
]}

Tashenov, S. ^{[2
]}

Wollersheim, H. J. ^{[2
]}

机构：

[1] Univ Brighton, Sch Comp Engn & Math, Brighton BN2 4GJ, E Sussex, England

[2] Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany

[3] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England

[4] Peking Univ, Dept Tech Phys, Beijing 100871, Peoples R China

[5] Univ Vigo, Fac Fis, E-36310 Vigo, Spain

[6] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany

[7] Polish Acad Sci, H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland

[8] Tech Univ Munich, Phys Dept E12, D-85748 Garching, Germany

[9] Warsaw Univ, Heavy Ion Lab, PL-02093 Warsaw, Poland

[10] Warsaw Univ Technol, Fac Phys, PL-00662 Warsaw, Poland

来源：

PHYSICAL REVIEW C | 2010年 / 82卷 / 04期

关键词：

RISING CAMPAIGN; GSI;

D O I：

10.1103/PhysRevC.82.044312

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：

Isomeric states in Tc-112 and Tc-113, with half-lives of 150(17) ns and 500(100) ns, respectively, have been observed following the relativistic fission of U-238. The fission fragments have been separated in a fragment separator and identified by means of energy-loss and time-of-flight techniques. In both nuclei, the ground-state configuration is calculated to have an oblate shape and the isomerism is proposed to arise due to transitions from a triaxial excited state to a low-lying oblate state.

引用

页数：4

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