CALCULATION OF THE 2-PHOTON-ANNIHILATION CONTRIBUTION TO THE POSITRONIUM HYPERFINE INTERVAL AT ORDER-MA(6)

被引：28

作者：

ADKINS, GS

AKSU, YM

BUI, MHT

机构：

[1] Franklin and Marshall College, Lancaster

来源：

PHYSICAL REVIEW A | 1993年 / 47卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.47.2640

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The two-photon-annihilation contribution to the positronium hyperfine interval is obtained in analytic form at order malpha6 using the Fried-Yennie gauge. The contribution to the hyperfine interval is -0.0325 malpha6 = -0.606 MHz. This differs from the result of an earlier Feynman gauge evaluation. The errors in the earlier calculation are identified. The corrected Feynman gauge result agrees with the Fried-Yennie gauge result.

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页码：2640 / 2652

页数：13

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