The second dissociation threshold bound levels of hydrogen molecule
Zhang Yan-Peng(张彦鹏)a)b), Song Jian-Ping(宋建平)a), Gan Chen-Li(甘琛利)c), Yan Xiang-An(严祥安)a), Nie Zhi-Qiang(聂志强)a), Jiang Tong(姜彤)a), Li Ling(李岭)a), Du Kai(杜凯)a), Zhang Xiang-Chen(张相臣)a), Lu Ke-Qing(卢克清)d), and E.E. Eylerb)
a Department of Electronic Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China; b Department of Physics, University of Connecticut, U-3046, Storrs, CT 06269, USA; c Department of Physics, University of Arkansas, Fayetteville, AR 72701, USA; d State Key Laboratory of Transient Optics and Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China
Abstract The near-threshold highly bound states of all three stable isotopic variants of molecular hydrogen have been studied. Numerous perturbations and unexpected transitions are observed as far as 1cm-1 just below the second dissociation threshold. This complex structure may arise from a combination of nonadiabatic coupling between B, B', C electronic states, perturbations due to fine and hyperfine interactions, and strong shape resonances. The perturbed near-threshold states and vibrational continuum exhibit finegrained structure, differing greatly between isotopes because of varying nonadiabatic coupling.
Received: 29 May 2005
Revised: 09 June 2006
Accepted manuscript online:
Zhang Yan-Peng(张彦鹏), Song Jian-Ping(宋建平), Gan Chen-Li(甘琛利), Yan Xiang-An(严祥安), Nie Zhi-Qiang(聂志强), Jiang Tong(姜彤), Li Ling(李岭), Du Kai(杜凯), Zhang Xiang-Chen(张相臣), Lu Ke-Qing(卢克清), and E.E. Eyler The second dissociation threshold bound levels of hydrogen molecule 2006 Chinese Physics 15 2288
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