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Abstract

Photoassociation spectroscopy with high resolution for 0u+(6P3/2) long-range state of ultracold cesium molecules has been measured experimentally using the modulated trap loss fluorescence spectroscopy technology. The spectral range has been extended over 60 cm-1 below the 6S1/2 + 6P3/2 dissociation limit as compared with other groups. twenty-five new observations of the Cs2 0u+ in long-range state are reported. The vibrational binding energies of these states are analyzed by using the LeRoy-Bernstein formula. The long-range parameter C3 in molecular 0u+(6P3/2) state is derived for 16.1030.010, and the corresponding molecular potential curve is depicted.

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[1]	Bai Su-Ying, Han Xiao-Xuan, Hao Li-Ping, Jiao Yue-Chun, Zhao Jian-Ming.Photoassociation spectra of cesium 31D_5/2+6S_1/2(F= 4) ultralong-range Rydberg molecules. Acta Physica Sinica, 2023, 72(14): 143201.doi:10.7498/aps.72.20230520
[2]	Jiao Yue-Chun, Bai Jing-Xu, Song Rong, Han Xiao-Xuan, Zhao Jian-Ming.Preparation of ultra-cold (36D_5/2+ 6S_1/2) Rydberg molecule and measurement of its permanent electric dipole moment. Acta Physica Sinica, 2023, 72(3): 033202.doi:10.7498/aps.72.20221865
[3]	Bai Su-Ying, Bai Jing-Xu, Han Xiao-Xuan, Jiao Yue-Chun, Zhao Jian-Ming.Ultra-cold long-range Rydberg-ground molecules. Acta Physica Sinica, 2021, 70(12): 123201.doi:10.7498/aps.70.20202229
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[10]	Huang Duo-Hui, Wang Fan-Hou, Yang Jun-Sheng, Wan Ming-Jie, Cao Qi-Long, Yang Ming-Chao.Potential energy curves and spectroscopic properties of SnO (X1Σ+, a3Π and A1Π) molecule. Acta Physica Sinica, 2014, 63(8): 083102.doi:10.7498/aps.63.083102
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[18]	Wang Li-Rong, Ma Jie, Zhang Lin-Jie, Xiao Lian-Tuan, Jia Suo-Tang.Experimental study of ultracold cesium atom photoassociation spectrum using an amplitude modulation technique. Acta Physica Sinica, 2007, 56(11): 6373-6377.doi:10.7498/aps.56.6373
[19]	Li Xin-Xi, Sun Wei-Guo, Feng Hao.Studies on the potential energy curves of heteronuclear diatomic molecules using energy consistent method. Acta Physica Sinica, 2003, 52(2): 307-311.doi:10.7498/aps.52.307
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Vol. 64, Issue 15 - 2015-08-05

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