Eur. Phys. J. A 12, 253-255 (2001)
In-beam study ofX.H. Zhou1, Y. Zheng1, Y.H. Zhang1, Z. Liu1, Q.Y. Pan1, Z.G. Gan1, T. Hayakawa2, M. Oshima2, T. Toh2, T. Shizuma2, J. Katakura2, Y. Hatsukawa2, M. Matsuda2, H. Kusakari3, M. Sugawara4, K. Furuno5 and T. Komatsubara5
1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, PRC
2 Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan
3 Chiba University, Inage-ku, Chiba 263-8512, Japan
4 Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan
5 Institute of Physics and Tandem Accelerator Center, University of Tsukuba, Japan
(Received: 21 September 2001 Communicated by D. Schwalm)
The high-spin states of 145Tb have been studied in the 118Sn( 32 S, 1p4n) reaction at 32S energies from 161 to 175 MeV using techniques of in-beam -ray spectroscopy. Measurements of -ray excitation functions and - - t coincidences were performed with 12 BGO(AC)HPGe detectors. Based on the measured results of - coincidences, -ray anisotropies and DCO ratios, a level scheme for 145Tb was established for the first time. The observed excited states show typical irregular pattern in a spherical nucleus, and the low-lying levels have been interpreted qualitatively with a particle-core coupling.
23.20.Lv - Gamma transitions and level energies.
27.60.+j - .
© Società Italiana di Fisica, Springer-Verlag 2001