Positronium-hydrogen atom elastic scattering at medium energies

被引：11

作者：

Adhikari, SK ^{[1
]}

Mandal, P

机构：

[1] Univ Estadual Paulista, Inst Fis Teor, BR-01405900 Sao Paulo, Brazil

[2] Dept Math, Santini Ketan 731235, W Bengal, India

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2000年 / 33卷 / 20期

关键词：

D O I：

10.1088/0953-4075/33/20/10g

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the elastic scattering of positronium atoms by hydrogen atoms at medium energies using partial-wave Born-Oppenheimer (BO) exchange amplitudes and report accurate BO cross sections in the energy range 0 to 60 eV. The present BO results agree with a 22-state R-matrix and a five-state coupled-channel model potential calculation, but disagree strongly with a conventional close-coupling calculation as well as its input BO amplitudes at medium energies.

引用

页码：L761 / L765

页数：5

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