Positronium formation for positron scattering from metastable hydrogen

doi:10.1088/1674-1056/26/3/033401

中国物理B ›› 2017, Vol. 26 ›› Issue (3): 33401-033401.doi: 10.1088/1674-1056/26/3/033401

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Positronium formation for positron scattering from metastable hydrogen

Lin Lin(林蔺), Hong-Nian Wang(汪宏年), Li-Guang Jiao(焦利光)

College of Physics, Jilin University, Changchun 130012, China

收稿日期:2016-11-16 修回日期:2017-01-03 出版日期:2017-03-05 发布日期:2017-03-05
通讯作者: Li-Guang Jiao E-mail:lgjiao@jlu.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11504128).

Positronium formation for positron scattering from metastable hydrogen

Lin Lin(林蔺), Hong-Nian Wang(汪宏年), Li-Guang Jiao(焦利光)

College of Physics, Jilin University, Changchun 130012, China

Received:2016-11-16 Revised:2017-01-03 Online:2017-03-05 Published:2017-03-05
Contact: Li-Guang Jiao E-mail:lgjiao@jlu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11504128).

摘要/Abstract

摘要： Positronium (Ps) formation for positron impact on metastable hydrogen in 2s state has been studied by using the two-channel, two-center eikonal final state-continuum initial distorted wave (EFS-CDW) method. The differential, integrated, and total cross sections for Ps formation in different states have been calculated from each channel opening thresholds to high energy region. The results are compared with other theoretical calculations available in the literature. For Ps formation in s-state at intermediate and high energies, our results are in good agreement with the prediction of distorted wave theory. Those formed in p-states and the total Ps formation cross sections are reported for the first time. It is shown that the total Ps formation cross sections for positron scattering from H(2s) state are significantly larger at relatively low energies, while smaller at high energies, compared with those obtained from hydrogen in ground state.

关键词: positronium formation, metastable hydrogen, continuum distorted wave method

Abstract: Positronium (Ps) formation for positron impact on metastable hydrogen in 2s state has been studied by using the two-channel, two-center eikonal final state-continuum initial distorted wave (EFS-CDW) method. The differential, integrated, and total cross sections for Ps formation in different states have been calculated from each channel opening thresholds to high energy region. The results are compared with other theoretical calculations available in the literature. For Ps formation in s-state at intermediate and high energies, our results are in good agreement with the prediction of distorted wave theory. Those formed in p-states and the total Ps formation cross sections are reported for the first time. It is shown that the total Ps formation cross sections for positron scattering from H(2s) state are significantly larger at relatively low energies, while smaller at high energies, compared with those obtained from hydrogen in ground state.

Key words: positronium formation, metastable hydrogen, continuum distorted wave method

中图分类号: (Recombination, attachment, and positronium formation)

34.80.Lx

34.80.Uv (Positron scattering) 36.10.Dr (Positronium)

林蔺, 汪宏年, 焦利光. Positronium formation for positron scattering from metastable hydrogen[J]. 中国物理B, 2017, 26(3): 33401-033401.

Lin Lin(林蔺), Hong-Nian Wang(汪宏年), Li-Guang Jiao(焦利光). Positronium formation for positron scattering from metastable hydrogen[J]. Chin. Phys. B, 2017, 26(3): 33401-033401.

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Positronium formation for positron scattering from metastable hydrogen

Positronium formation for positron scattering from metastable hydrogen

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