A new measurement of levelsL. Zhang1, K. Morita2, Q.Y. Hu1, A. Yoshida2, J.H. Zhao1, Z.K. Li1, J.W. Zheng1, Y.H. Pu2, H. Kudo3, H. Wei1, C.F. Wang1, H.M. Fan1, J.N. Gu1 and Y. Yano2
1 Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000, PRC
2 RIKEN (The Institute of Physical and Chemical Research), Wako, Staitama, 351-0198, Japan
3 Department of Chemictry, Niigata University, Niigata 950-2181, Japan
(Received: 12 August 2002 / Revised version: 6 November 2002 / Published online: 25 February 2003)
A new determination for the levels of the nucleus was performed by measuring the -rays following the -decay of . Twenty-six -rays were assigned and three new levels of at 1.728 MeV, 1.652 MeV and 1.362 MeV have been affirmed. A partial decaying scheme was proposed. The experimental level structure was compared with a shell model calculation.
23.20.Lv - Gamma transitions and level energies.
23.40.-s - Beta decay; double beta decay; electron and muon capture.
© Società Italiana di Fisica, Springer-Verlag 2003