A holographic analysis of the pion

Abstract

Being simultaneously a bound state and a pseudo-Goldstone boson of chiral symmetry breaking, the pion is an ideal probe of the intertwined phenomena of confinement and chiral symmetry breaking in QCD. Here, we compute the low energy pion observables with light-front holography, taking into account longitudinal dynamics using an ansatz that explores the strong degeneracy of the `t Hooft and Li-Vary models as well as their underlying connection in ${\mathrm{AdS}}_3$ as recently noted by Vegh.

Comments: 4 pages, 1 figure, Proceedings Contribution for the 59th Rencontres de Moriond on QCD and High Energy Interactions, 30 March-6 April 2025. La Thuille, Italy