Potential NRQED: The positronium case - art. no. 016005

Authors
Pineda, A Soto, J
Citation
A. Pineda et J. Soto, Potential NRQED: The positronium case - art. no. 016005, PHYS REV D, 5901(1), 1999, pp. 6005
Citations number
35
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
5901
Issue
1
Year of publication
1999
Database
ISI
SICI code
0556-2821(19990101)5901:1<6005:PNTPC->2.0.ZU;2-L
Abstract
We discuss in detail potential NRQED (pNRQED), a previously proposed effect ive field theory for ultrasoft photons. The pNRQED Lagrangian for the equal mass case is presented, and it is shown that it correctly reproduces the p ositronium spectrum at order m alpha(5). The pNRQED Lagrangian for the uneq ual mass case is also presented at the same order. Dimensional regularizati on is used throughout. [S0556-2821(98)06423-6].