Pions reloaded
High Energy Physics - Phenomenology
2026-04-02 v1 Nuclear Theory
Abstract
We present a novel version of the pion Bethe-Salpeter equation in the chiral limit, solved using as ingredients state-of-the-art QCD correlation functions. The constraints imposed by the axial Ward-Takahashi identities are exactly fulfilled, both formally and numerically.
Cite
@article{arxiv.2604.00996,
title = {Pions reloaded},
author = {M. N. Ferreira and A. S. Miramontes and J. M. Morgado and J. Papavassiliou and J. M. Pawlowski},
journal= {arXiv preprint arXiv:2604.00996},
year = {2026}
}
Comments
6 pages, 4 figures. Submitted to the proceedings of the Excited QCD Workshop 2026