Search for Signature Inversion in the πi13/2⊙νi13/2 Bands in 182,184,186Au

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ZHANG Yu-Hu, ZHOU Xiao-Hong, HE Jian-Jun, LIU Zhong, FANG Yong-De, GUO Wen-Tao, LEI Xiang-Guo, GUO Ying-Xiang, MA Long and Moyo Ndontchueng. Search for Signature Inversion in the πi13/2⊙νi13/2 Bands in 182,184,186Au[J]. Chinese Physics C, 2006, 30(S2): 208-210.
ZHANG Yu-Hu, ZHOU Xiao-Hong, HE Jian-Jun, LIU Zhong, FANG Yong-De, GUO Wen-Tao, LEI Xiang-Guo, GUO Ying-Xiang, MA Long and Moyo Ndontchueng. Search for Signature Inversion in the πi13/2⊙νi13/2 Bands in 182,184,186Au[J]. Chinese Physics C, 2006, 30(S2): 208-210. shu
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Received: 2006-10-18
Revised: 1900-01-01
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Search for Signature Inversion in the πi13/2⊙νi13/2 Bands in 182,184,186Au

    Corresponding author: ZHANG Yu-Hu,
  • Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan3 Department of Physics, Kyushu University, Fukuoka, 812-81, Japan4 Chiba Institute of Technology, Narashino, China 275-0023, Japan5 Chiba University, Inage-ku, Chiba 263-8512, Japan6 Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy7 Department of Technical Physics, Peking University, Beijing 100871, China

Abstract: Search for low-spin signature inversion in the πi13/2⊙νi13/2 bands in odd-odd 182,184,186Au has been conducted through the standard in-beam γ-spectroscopy techniques via the 152Sm(35Cl,5n)182Au, 172Yb(19F,5n)186Au, and 159Tb(29Si,4n)184Au reactions, respectively. The πi13/2⊙νi13/2 bands in these three nuclei have been identified and extended up to high-spin states. In particular, the inter-band connection between the πi13/2⊙νi13/2 band and the ground-state band in 184Au has been established, leading to a firm spin-and-parity assignment for the πi13/2⊙νi13/2 band. The low-spin signature inversion is found in the πi13/2⊙νi13/2 bands according to our spin-assignment and the signature crossing observed at high-spin states.

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