Hadron properties in AdS/QCD

TL;DR

This paper presents a holographic soft-wall model for describing hadron properties, including mesons and baryons, with results aligning with heavy quark effective theory and providing insights into baryon structure.

Contribution

It introduces a novel soft-wall holographic model that describes hadrons with broken conformal invariance and confinement, applicable to various hadron types and quantum numbers.

Findings

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

Baryon masses and electromagnetic form factors are successfully modeled.

The approach provides a unified framework for mesons and baryons.

Abstract

We discuss a holographic soft-wall model developed for the description of mesons and baryons with adjustable quantum numbers n, J, L, S. This approach is based on an action which describes hadrons with broken conformal invariance and which incorporates confinement through the presence of a background dilaton field. Results obtained for heavy-light meson masses and decay constants are consistent with predictions of HQET. In the baryon sector applications to the baryon masses, nucleon electromagnetic form factors and generalized parton distributions are discussed.