Narrow Near-Threshold Resonance in e+–He+ Scattering
LIU Min-Min1,2,3, HAN Hui-Li1**, GU Si-Hong1, SHI Ting-Yun1
1State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 2School of Science, Wuhan Institute of Technology, Wuhan 430073 3Graduate School of the Chinese Academy of Sciences, Beijing 100049
Narrow Near-Threshold Resonance in e+–He+ Scattering
LIU Min-Min1,2,3, HAN Hui-Li1**, GU Si-Hong1, SHI Ting-Yun1
1State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 2School of Science, Wuhan Institute of Technology, Wuhan 430073 3Graduate School of the Chinese Academy of Sciences, Beijing 100049
摘要An independent alternative calculation is performed for narrow near-threshold resonances in the e+–He+ system using the stabilization method in the framework of hyperspherical coordinates (HSSM). A narrow resonance at Er=−0.249995 with width Γ=1.9×10−5, associated with the He2+–Ps (n =1) threshold is confirmed. The resonances around the energies −0.365 and −0.195, predicted by Bhatia and Drachman [Phys. Rev. A 42 (1990) 5117] and confirmed by Ho [Phys. Rev. A 53 (1996) 3165], do not appear in our calculations.
Abstract：An independent alternative calculation is performed for narrow near-threshold resonances in the e+–He+ system using the stabilization method in the framework of hyperspherical coordinates (HSSM). A narrow resonance at Er=−0.249995 with width Γ=1.9×10−5, associated with the He2+–Ps (n =1) threshold is confirmed. The resonances around the energies −0.365 and −0.195, predicted by Bhatia and Drachman [Phys. Rev. A 42 (1990) 5117] and confirmed by Ho [Phys. Rev. A 53 (1996) 3165], do not appear in our calculations.
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2012, Vol. 29 
