ORDER M-ALPHA(6) CONTRIBUTIONS TO GROUND-STATE HYPERFINE SPLITTING INPOSITRONIUM

Authors
ADKINS GS SAPIRSTEIN J
Citation
Gs. Adkins et J. Sapirstein, ORDER M-ALPHA(6) CONTRIBUTIONS TO GROUND-STATE HYPERFINE SPLITTING INPOSITRONIUM, Physical review. A, 58(5), 1998, pp. 3552-3560
Citations number
26
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
58
Issue
5
Year of publication
1998
Pages
3552 - 3560
Database
ISI
SICI code
1050-2947(1998)58:5<3552:OMCTGH>2.0.ZU;2-K
Abstract
A Bethe-Salpeter based bound-state formalism is applied to the calcula tion of recoil contributions of order m alpha(6) to hyperfine splittin g in ground-state positronium. The calculation involves the numerical evaluation of two- and three-photon exchange diagrams along with deriv ative terms and many-potential contributions. After inclusion of all o ther contributions of the same order, a comparison with other calculat ions and experiment is made. [S1050-2947(98)02911-4].