Virtual photons in chiral perturbation theory
Abstract
In the framework of chiral perturbation theory virtual photons are included. We calculate the divergences of the generating functional to one loop and determine the structure of the local action that incorporates the counterterms which cancel the divergences. As an application we discuss the corrections to Dashen's theorem at order e^{2}M_{q}.
 Publication:

Nuclear Physics B
 Pub Date:
 February 1995
 DOI:
 10.1016/05503213(95)90707N
 arXiv:
 arXiv:hepph/9405341
 Bibcode:
 1995NuPhB.433..234U
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 19 pages , LaTex, 1 figure appended as PostScript file, (little corrections on the pages 8 and 17  the physical results are not affected), BUTP94/9