Convergent variational calculation of positronium-hydrogen-atom scattering lengths

被引：21

作者：

Adhikari, SK ^{[1
]}

Mandal, P

机构：

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

[2] Visva Bharati, Dept Math, Santiniketan 731235, W Bengal, India

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2001年 / 34卷 / 06期

关键词：

D O I：

10.1088/0953-4075/34/6/106

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a convergent variational basis-set calculational scheme for elastic scattering of the positronium atom by the hydrogen atom in S wave. Highly correlated trial functions with appropriate symmetry are needed to achieve convergence. We report convergent results for scattering lengths in atomic units for both singlet (= 3.49 +/-0.20) and triplet (= 2.46 +/-0.10) states.

引用

页码：L187 / L194

页数：8

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