Scalar Spectrum from a Dynamical Gravity/Gauge model

TL;DR

This paper demonstrates that a Dynamical AdS/QCD model can successfully reproduce linear Regge trajectories, confinement, and decay amplitudes for light-flavor mesons, aligning well with experimental data.

Contribution

It introduces a Dynamical AdS/QCD model capable of simultaneously modeling meson spectra, confinement, and decay processes with high accuracy.

Findings

Reproduces linear Regge trajectories for high-spin mesons

Achieves confinement and mass gap consistent with Wilson loop criteria

Accurately predicts scalar decay amplitudes into two pions

Abstract

We show that a Dynamical AdS/QCD model is able to reproduce the linear Regge trajectories for the light-flavor sector of mesons with high spin and also for the scalar and pseudoscalar ones. In addition the model has confinement by the Wilson loop criteria and a mass gap. We also calculate the decay amplitude of scalars into two pion in good agreement to the available experimental data.