Chin. Phys. Lett.  1999, Vol. 16 Issue (10): 715-717    DOI:
Original Articles |
Octupole Deformation and Signature Inversion in 145Ba
ZHU Sheng-jiang1;M. Sakhaee1;J. H. Hamilton2;A. V. Ramayya2;GAN Cui-yun1;ZHU Ling-yan1;YANG Li-ming;LONG Gui-lu1;PAN San-li1;B. R. S. Babu2;J. K. Hwang2;W. C. Ma3;J. Komicki2;X. Q. Zhang2;E. F. Jones2;J .D. Cole4;R. Aryaeinejad4;M.W. Drigert4;J. O. Rasmussen5 M. A. Stoyer5;S. Y.Chu5;K. E. Gregorich5;M.F.Mohar5;S. G. Prussin5;I. Y. Lee5;Yu. Ts. Oganessian6;G. M. Ter-Akopian6;A. V. Daniel6
1Department of Physics, Tsinghua. University, Beijing 100084 2Department of Physics, Vanderbilt University, Nashville, TN 37235, USA 3Department of Physics, Mississippi State University, MS 39762, USA 4Idaho National Engineering Laboratory, Idaho Falls, ID 83415, USA 5Lawrence Berkeley Laboratory, Berkekey, CA 94720, USA 6Joint Institute for Nuclear Rearch, Dubna 141980, Russia
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ZHU Sheng-jiang, M. Sakhaee, J. H. Hamilton et al  1999 Chin. Phys. Lett. 16 715-717
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Abstract High spin states in Neutron-rich odd-N 145Ba nucleus have been investigated from study of prompt γ -rays in spontaneous fission of 252Cf. The alternating party bands are identified indicating octupole deformation with simplex quantum number s = - i. The groud state band shows signature splitting and inversion at low spin. These collective band structures exhibit the competition and co-existence between symmetric and asymmetric shapes.
Keywords: 21.10.Re      23.20.Lv      27.60.+j      25.85.Ca     
Published: 01 October 1999
PACS:  21.10.Re (Collective levels)  
  23.20.Lv (γ-transitions and level energies)  
  27.60.+j (90 ≤ A ≤ 149)  
  25.85.Ca (Spontaneous fission)  
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ZHU Sheng-jiang
M. Sakhaee
J. H. Hamilton
A. V. Ramayya
GAN Cui-yun
ZHU Ling-yan
YANG Li-ming
LONG Gui-lu
PAN San-li
B. R. S. Babu
J. K. Hwang
W. C. Ma
J. Komicki
X. Q. Zhang
E. F. Jones
J .D. Cole
R. Aryaeinejad
M.W. Drigert
J. O. Rasmussen M. A. Stoyer
S. Y.Chu
K. E. Gregorich
M.F.Mohar
S. G. Prussin
I. Y. Lee
Yu. Ts. Oganessian
G. M. Ter-Akopian
A. V. Daniel
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