Coupled-channels optical calculation of positron-hydrogen resonances

被引：3
|
作者：
Yu Rong-Mei [1 ]
Zhou Ya-Jun [1 ]
Jiao Li-Guang [1 ]
Cheng Yong-Jun [1 ]
机构：
[1] Harbin Inst Technol, Acad Fundamental & Interdisciplinary Sci, Harbin 150081, Peoples R China
来源：
CHINESE PHYSICS B | 2012年 / 21卷 / 01期
基金：
中国国家自然科学基金;
关键词：
positron; hydrogen; resonance; S-WAVE RESONANCES; LOW ENERGIES; SCATTERING; THRESHOLD; ELECTRONS; SYSTEM;
D O I：
10.1088/1674-1056/21/1/013404
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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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页数：6
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