Structure and resonances of the e+-He(1s2s 3Se) system

被引：8
|
作者：
Ren, Zhenzhong [1 ,2 ]
Han, Huili [1 ]
Shi, Tingyun [1 ]
Mitroy, J. [3 ,4 ]
机构：
[1] Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
[3] Charles Darwin Univ, Ctr Antimatter Matter Studies, Darwin, NT 0909, Australia
[4] Charles Darwin Univ, Sch Engn, Darwin, NT 0909, Australia
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2012年 / 45卷 / 08期
基金：
澳大利亚研究理事会;
关键词：
S-WAVE RESONANCES; POSITRON SCATTERING; THRESHOLDS; FESHBACH; STATES; N=3;
D O I：
10.1088/0953-4075/45/8/085002
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We have studied the geometry and resonances of the e(+)He(S-3(e)) system in the framework of hyperspherical coordinates. A model potential proposed by us is used to describe the interaction between the out electron with the He+ ionic core. The calculated binding energy and expectation distance of the system are in agreement with other calculations. In addition, two resonances below the e(+)-He(1s3s S-3(e)) threshold and one resonance below the Ps(n=2)-He+ threshold are identified.
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收藏
页数：7
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