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Coupled-channels optical calculation of positronben hydrogen resonances |
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| Authors: | Yu Rong-Mei Zhou Ya-Jun Jiao Li-Guang and Cheng Yong-Jun |
| Institution: | The Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150081, China;The Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150081, China;The Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150081, China;The Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150081, China |
| Abstract: | An application of the coupled-channels optical method is given for the energy-dependent phenomena of positron-hydrogen resonances below the n=2 excitation threshold. The equivalent local optical potential is used to account for the target polarization and positronium formation. The calculation includes 9 explicitly physical coupled channels. The lowest S-wave resonance energy position and new resonances are found. Angular dependence of the cross section in the resonance region are investigated. |
| Keywords: | positron hydrogen resonance |
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