Identification of a New Four-Quasiparticle State in Odd-Odd 186Au
LI Shi-Cheng1,2, SHI Yue3, ZHANG Yu-Hu1**, ZHOU Xiao-Hong1, XU Fu-Rong3, FANG Yong-De1, LIU Min-Liang1, DING Bing1,2, GUO Song1, LI Guang-Shun1,2, ZHOU Hou-Bing1,2, M. Oshima4, Y. Toh4, M. Koizumi4, A. Osa4, A. Kimura4, Y. Hatsukawa4, H. Hayakawa4, T. Shizuma4, J. Katakura4, M. Matsuda4, T. Morikawa5, M. Sugawara6, H. Kusakari7
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 2Graduate University of Chinese Academy of Sciences, Beijing 100049 3School of Physics, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 4Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan 5Department of Physics, Kyushu University, Fukuoka, 812-81, Japan 6Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan 7Chiba University, Inage-ku, Chiba 263-8512, Japan
Identification of a New Four-Quasiparticle State in Odd-Odd 186Au
LI Shi-Cheng1,2, SHI Yue3, ZHANG Yu-Hu1**, ZHOU Xiao-Hong1, XU Fu-Rong3, FANG Yong-De1, LIU Min-Liang1, DING Bing1,2, GUO Song1, LI Guang-Shun1,2, ZHOU Hou-Bing1,2, M. Oshima4, Y. Toh4, M. Koizumi4, A. Osa4, A. Kimura4, Y. Hatsukawa4, H. Hayakawa4, T. Shizuma4, J. Katakura4, M. Matsuda4, T. Morikawa5, M. Sugawara6, H. Kusakari7
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 2Graduate University of Chinese Academy of Sciences, Beijing 100049 3School of Physics, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 4Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan 5Department of Physics, Kyushu University, Fukuoka, 812-81, Japan 6Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan 7Chiba University, Inage-ku, Chiba 263-8512, Japan
摘要The high-spin level structure of 186Au is re−investigated by means of in-beam γ−ray spectroscopy via the 172Yb(19F, 5nγ)186Au reaction. The oblate bands previously reported are revised and extended to higher−spin states. A new Iπ=(20+) excited state has been identified and assigned to the πh11/2−1 ⊗νi13/2-2h9/2-1 configuration. The total Routhian surface and cranked shell model calculations suggest that the πh11/2−1 ⊗νi13/2-2h9/2-1 band in 186Au has a non-axial deformation.
Abstract：The high-spin level structure of 186Au is re−investigated by means of in-beam γ−ray spectroscopy via the 172Yb(19F, 5nγ)186Au reaction. The oblate bands previously reported are revised and extended to higher−spin states. A new Iπ=(20+) excited state has been identified and assigned to the πh11/2−1 ⊗νi13/2-2h9/2-1 configuration. The total Routhian surface and cranked shell model calculations suggest that the πh11/2−1 ⊗νi13/2-2h9/2-1 band in 186Au has a non-axial deformation.
LI Shi-Cheng1,2, SHI Yue3, ZHANG Yu-Hu1**, ZHOU Xiao-Hong1, XU Fu-Rong3, FANG Yong-De1, LIU Min-Liang1, DING Bing1,2, GUO Song1, LI Guang-Shun1,2, ZHOU Hou-Bing1,2, M. Oshima4, Y. Toh4, M. Koizumi4, A. Osa4, A. Kimura4, Y. Hatsukawa4, H. Hayakawa4, T. Shizuma4, J. Katakura4, M. Matsuda4, T. Morikawa5, M. Sugawara6, H. Kusakari7. Identification of a New Four-Quasiparticle State in Odd-Odd 186Au[J]. 中国物理快报, 2012, 29(2): 22102-022102.
LI Shi-Cheng, SHI Yue, ZHANG Yu-Hu, ZHOU Xiao-Hong, XU Fu-Rong, FANG Yong-De, LIU Min-Liang, DING Bing, GUO Song, LI Guang-Shun, ZHOU Hou-Bing, M. Oshima, Y. Toh, M. Koizumi, A. Osa, A. Kimura, Y. Hatsukawa, H. Hayakawa, T. Shizuma, J. Katakura, M. Matsuda, T. Morikawa, M. Sugawara, H. Kusakari. Identification of a New Four-Quasiparticle State in Odd-Odd 186Au. Chin. Phys. Lett., 2012, 29(2): 22102-022102.
[1] Song L T, Zhou X H, Zhang Y H et al 2004 Phys. Rev. C 69 037302
[2] Zhang Y H, Fang Y D, de Angelis G et al 2004 Phys. Rev. C 70 057303
[3] Janzen V P, Liu Z M, Carpenter M P et al 1992 Phys. Rev. C 45 613
[4] Bourgeois C, Porquet M G, Perrin N et al 1989 Z. Phys. A 333 5
[5] Venkova Ts, Marti G V, Lieder R M et al 1992 Z. Phys. A 344 231
[6] Gueorguieva E, Schück C, Minkova A et al 2001 Phys. Rev. C 64 064304
[7] Gueorguieva E, Schück C, Minkova A et al 2003 Phys. Rev. C 68 054308
[8] Oktem Y, Balabanski D L, Akkus B et al 2007 Phys. Rev. C 76 044315
[9] Gueorguieva E, Schück C, Minkova A et al 2004 Phys. Rev. C 69 044320
[10] Fang Y D, Zhang Y H, Oshima M et al 2010 Phys. Rev. C 82 064303
[11] Furuno K, Oshima M, Komatsubara T et al 1999 Nucl. Instrum. Methods Phys. Res. A 421 211
[12] Porquet M G, Bourgeois C, Kilcher P et al 1983 Nucl. Phys. A 411 65
[13] Zhang Y H, Wang H L, de Angelis G et al 2004 Chin. Phys. Lett. 21 799
[14] Neskakis A, Lieder R M, Beuscher H et al 1982 Nucl. Phys. A 390 53
[15] Cunnane J C, Piiparinen M, Daly P J et al 1976 Phys. Rev. C 13 2197
[16] Zhang Y H, Oshima M, Toh Y et al 2003 Phys. Rev. C 68 054313
[17] Nazarewicz W, Dudek J, Bengtsson R et al 1985 Nucl. Phys. A 435 397
MA Ke-Yan, LU Jing-Bin, YANG Dong, LI Jian, WANG Hui-Dong, LIU Yun-Zuo, WU Xiao-Guang, ZHU Li-Hua, ZHENG Yun, HE Chuang-Ye. High Spin States of 113In[J]. 中国物理快报, 2012, 29(6): 62102-062102.
[15]
WANG Lie-Lin, LU Jing-Bin, YANG Dong, MA Ke-Yan, ZHOU Yin-Hang, YIN Li-Chang, WU Xiao-Guang, WEN Shu-Xian, LI Guang-Sheng, YANG Chun-Xiang. High-Spin Structure in Odd-Odd 160Lu Nucleus[J]. 中国物理快报, 2012, 29(6): 62103-062103.
2012, Vol. 29 
