piN scattering and electromagnetic corrections in the perturbative chiral quark model
High Energy Physics - Phenomenology
2009-11-07 v2
Abstract
We apply the perturbative chiral quark model to give predictions for the electromagnetic O(p^2) low-energy couplings of the ChPT effective Lagrangian that define the electromagnetic mass shifts of nucleons and first-order (e^2) radiative corrections to the piN scattering amplitude. We estimate the leading isospin-breaking correction to the strong energy shift of the pi(-)p atom in the 1s state, which is relevant for the experiment "Pionic Hydrogen" at PSI.
Keywords
Cite
@article{arxiv.hep-ph/0108134,
title = {piN scattering and electromagnetic corrections in the perturbative chiral quark model},
author = {V. E. Lyubovitskij and Th. Gutsche and Amand Faessler and R. Vinh Mau},
journal= {arXiv preprint arXiv:hep-ph/0108134},
year = {2009}
}
Comments
12 pages, 2 figures