Rotational alignment of the h11/2 band in 157Dy |
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| Authors: | T Hayakawa Y Toh M Oshima M Matsuda Y Hatsukawa J Katakura H Iimura T Shizuma S Mitarai M Sugawara H Kusakari YH Zhang |
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| Institution: | (1) Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan, JP;(2) Kyushu University, Hakozaki, Fukuoka 812-8581, Japan, JP;(3) Chiba Institute of Technology, Narashino, Chiba 275-8588, Japan, JP;(4) Chiba University, Inage-ku, Chiba 263-8522, Japan, JP;(5) Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, PRC, CN |
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| Abstract: | High-spin states of 157Dy were investigated using in-beam γ-ray spectroscopy techniques with a 150Nd(12C, 5n) reaction. Three rotational bands with the h
9/2, i
13/2 and h
11/2 configurations were observed up to (43/2-), 53/2+ and 45/2-, respectively. Interband M1 transitions in the h
11/2 (high-Ω) band were also measured up to the highest-spin state. The high-spin states were well reproduced by calculations
using the tilted-axis-cranking model (TAC). The B(M1)/B(E2) ratio, Routhian and the tilted angle of the angular-momentum vector are found to be in good agreement with the result of
the TAC calculation.
Received: 22 August 2002 / Accepted: 26 September 2002 / Published online: 19 November 2002
RID="a"
ID="a"e-mail: hayakawa@jball4.tokai.jaeri.go.jp
Communicated by W. Henning |
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| Keywords: | PACS 23 20 Lv Gamma transitions and level energies – 27 70 +q 150 ⩽ A ⩽ 189 – 21 60 Ev Collective models |
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