Compton scattering by pion: there is no room for the off-shell effects
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
We show that the off-shell contributions in Compton scattering by pion may exist only in the single exchange diagrams. These contributions are canceled completely in the total gauge-invariant amplitude as it confirmed by one-loop calculations. It explains, in particular, some results of the chiral pertubation theory in the order but this cancelation has no relation to chiral symmetry.
Keywords
Cite
@article{arxiv.hep-ph/9810202,
title = {Compton scattering by pion: there is no room for the off-shell effects},
author = {A. E. Kaloshin},
journal= {arXiv preprint arXiv:hep-ph/9810202},
year = {2007}
}
Comments
11 pages, LaTeX2e, 4 figures included