Mesons and baryons in the holographic soft-wall model

TL;DR

This paper explores mesons and baryons using a holographic soft-wall model, successfully reproducing linear Regge trajectories and aligning with heavy quark effective theory predictions, with applications to nucleon form factors.

Contribution

It introduces a soft-wall holographic model that accurately describes hadron spectra and properties, including heavy-light mesons and nucleon form factors.

Findings

Regge trajectories are linear in quantum numbers n and J.

Heavy-light meson masses and decay constants match HQET predictions.

Application to nucleon electromagnetic form factors and GPDs.

Abstract

Mesons and baryons are considered in soft-wall holographic approach based on the correspondence of string theory in AdS space and conformal field theory in physical space-time. The model generates Regge trajectories linear in n and J (L) for the hadronic mass spectrum. Results obtained for heavy-light meson masses and decay constants are consistent with predictions of HQET. In the baryon sector applications to the nucleon electromagnetic form factors and generalized parton distributions are discussed.