SU(2) χPT with virtual photons

Configuration:  "ChPTVirtualPhotons2"
Lagrangians:  ChPTVirtualPhotons2[2], ChPTVirtualPhotons2[4]

•Feynman rules of second order in the chiral expansion

•πAγ

•3πA

•ππγ

•ππγγ

•ππππ

•ππππγ

•ππππγγ

•ππππππ

•Feynman rules of fourth order in the chiral expansion

•ππγ

•ππππ

Converted by Mathematica  (July 10, 2003)