The second dissociation threshold bound levels of hydrogen molecule |
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| Authors: | Zhang Yan-Peng Song Jian-Ping Gan Chen-Li Yan Xiang-An Nie Zhi-Qiang Jiang Tong Li Ling Du Kai Zhang Xiang-Chen Lu Ke-Qing and Eyler EE |
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| Institution: | Department of Electronic Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China; Department of Physics, University of Connecticut, U-3046, Storrs, CT 06269, USA; Department of Physics, University of Arkansas, Fayetteville, AR 72701, USA; State Key Laboratory of Transient Optics and Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China |
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| 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\sj{-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. |
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| Keywords: | dissociation threshold nonadiabatic coupling bound states |
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