Meson elastic and transition form factors
Nuclear Theory
2017-08-23 v1
Abstract
The Dyson-Schwinger equations of QCD, truncated to ladder-rainbow level, are used to calculate meson form factors in impulse approximation. The infrared strength of the ladder-rainbow kernel is described by two parameters fitted to the chiral condensate and f_pi; the ultraviolet behavior is fixed by the QCD running coupling. This obtained elastic form factors F_pi(Q^2) and F_K(Q^2) agree well with the available data. We also calculate the rho to pi gamma and K* to K gamma transition form factors, which are useful for meson-exchange models.
Cite
@article{arxiv.nucl-th/0209048,
title = {Meson elastic and transition form factors},
author = {Pieter Maris},
journal= {arXiv preprint arXiv:nucl-th/0209048},
year = {2017}
}
Comments
6 pages, contribution to the JLab workshop Exclusive processes at high-t, May 2002