Quadrupole Moment of the h11/2 Quasineutron Band in 129Ce
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Abstract
Mean lifetimes of the h11/2 quasineutron band in 129Ce were measured by using the Doppler shift attenuation method in connection with the reaction 116Sn (l6O, 3n)129Ce at a bombarding energy of 73MeV. The data indicate that transition quadrupole moment of 129Ce is smaller than that of 128Ce. This reduction in collectivity caused by the addition of an h11/2 neutron can be interpreted as due to triaxiality induced by γ driving effect.
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LI Guang-sheng, DAI Zheng-yu, LIU Xiang-an, ZHANG Lan-kuan, WEN Shu-xian, WU Xiao-guang, YUAN Guan-jun, WENG Pei-kun, LI Sheng-gang, YANG Chun-xiang. Quadrupole Moment of the h11/2 Quasineutron Band in 129Ce[J]. Chin. Phys. Lett., 1998, 15(8): 564-565.
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LI Guang-sheng, DAI Zheng-yu, LIU Xiang-an, ZHANG Lan-kuan, WEN Shu-xian, WU Xiao-guang, YUAN Guan-jun, WENG Pei-kun, LI Sheng-gang, YANG Chun-xiang. Quadrupole Moment of the h11/2 Quasineutron Band in 129Ce[J]. Chin. Phys. Lett., 1998, 15(8): 564-565.
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LI Guang-sheng, DAI Zheng-yu, LIU Xiang-an, ZHANG Lan-kuan, WEN Shu-xian, WU Xiao-guang, YUAN Guan-jun, WENG Pei-kun, LI Sheng-gang, YANG Chun-xiang. Quadrupole Moment of the h11/2 Quasineutron Band in 129Ce[J]. Chin. Phys. Lett., 1998, 15(8): 564-565.
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LI Guang-sheng, DAI Zheng-yu, LIU Xiang-an, ZHANG Lan-kuan, WEN Shu-xian, WU Xiao-guang, YUAN Guan-jun, WENG Pei-kun, LI Sheng-gang, YANG Chun-xiang. Quadrupole Moment of the h11/2 Quasineutron Band in 129Ce[J]. Chin. Phys. Lett., 1998, 15(8): 564-565.
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