Eur. Phys. J. A (2004) 19: 7-9
https://doi.org/10.1140/epja/i2003-10116-1

Letter

Level structure of ¹⁴⁶Tb

¹ Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, PRC
² Japan Atomic Energy Research Institute, 319-1195, Ibaraki, Tokai, Japan
³ Chiba University, 263-8512, Chiba, Inage-ku, Japan
⁴ Chiba Institute of Technology, 275-0023, Chiba, Narashino, Japan
⁵ Institute of Physics and Tandem Accelerator Center, University of Tsukuba, Japan

^* e-mail: zxh@impcas.ac.cn

Abstract

The level structure of the doubly odd nucleus ¹⁴⁶Tb has been studied via the ¹¹⁸Sn(³²S, 1p3n) reaction using techniques of in-beam -ray spectroscopy. Measurements of -ray anisotropies, X- and --t coincidences were performed with 12 BGO(AC)HPGe detectors. Based on the measured results, the level scheme of ¹⁴⁶Tb has been revised significantly and extended up to an excitation energy of 8.39 MeV. The level structure has been interpreted qualitatively by coupling an h _11/2 proton-particle and an h _11/2 neutron-hole to the excited states in the ¹⁴⁶Gd core.