The photodetachment of H- near the H(N = 4) and H(N = 5) thresholds in an external electric field is studied theoretically. The recently observed photodetachment threshold shifts by Halka et al. are interpreted in terms of the shifts of the barrier heights of the hyperspherical potential curves as the electric field strength is varied. It is shown that higher members of the zero-field Feshbach resonances can emerge as field-induced shape resonances in an electric field.
机构:
Shanxi Normal Univ, Sch Phys & Informat Sci, Linfen 041004, Peoples R China
Shanxi Normal Univ, Ctr Mol Res, Linfen 041004, Peoples R ChinaShanxi Normal Univ, Sch Phys & Informat Sci, Linfen 041004, Peoples R China
Wu Xiao-Qing
Du Meng-Li
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Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R ChinaShanxi Normal Univ, Sch Phys & Informat Sci, Linfen 041004, Peoples R China
Du Meng-Li
Zhao Hai-Jun
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Shanxi Normal Univ, Sch Phys & Informat Sci, Linfen 041004, Peoples R China
Shanxi Normal Univ, Ctr Mol Res, Linfen 041004, Peoples R ChinaShanxi Normal Univ, Sch Phys & Informat Sci, Linfen 041004, Peoples R China