Pions reloaded
arXiv:2604.00996
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.
6 pages, 4 figures. Submitted to the proceedings of the Excited QCD Workshop 2026