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.

引用

页数：6

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