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Coupled-channels optical calculation of positron–hydrogen resonances |
Yu Rong-Mei(于荣梅), Zhou Ya-Jun(周雅君)†, Jiao Li-Guang(焦利光), and Cheng Yong-Jun(程勇军) |
The Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150081, China |
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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.
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Received: 20 April 2011
Revised: 09 May 2011
Accepted manuscript online:
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PACS:
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34.80.Uv
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(Positron scattering)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10674055). |
Cite this article:
Yu Rong-Mei(于荣梅), Zhou Ya-Jun(周雅君), Jiao Li-Guang(焦利光), and Cheng Yong-Jun(程勇军) Coupled-channels optical calculation of positron–hydrogen resonances 2012 Chin. Phys. B 21 013404
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