Compton Scattering and Fixed Poles in Parton Field-Theoretic Models
We extend a class of parton models to a fully gauge-invariant theory for the full Compton amplitude. The existence of local electromagnetic interactions is shown to always give rise to a constant real part in the high-energy behavior of the amplitude T1(ν,q2). In the language of Reggeization this is interpreted as a fixed pole at J=0 in T1 and νT2, with residue polynomial in the photon mass squared.
Physical Review D
- Pub Date:
- March 1972