Hadrons in AdS / QCD correspondence

TL;DR

This paper introduces a holographic soft wall model that accurately reproduces hadron spectra across various spins and constituent numbers, incorporating anomalous dimensions and a dilaton derived from Einstein equations.

Contribution

The model is the first to simultaneously account for Regge trajectories of hadrons with arbitrary spin, including spin 1/2 and 3/2, and multiple constituents, using a dilaton based on Einstein equations.

Findings

Successfully reproduces Regge spectra for various hadron spins

Incorporates anomalous dimensions of operators creating hadrons

Includes a dilaton field derived from Einstein equations

Abstract

We present an holographical soft wall model which is able to reproduce not only Regge spectra for hadrons with arbitrary integer spin, but also with spin 1/2 and 3/2, and with an arbitrary number of constituents. The model includes the anomalous dimension of operators than create hadrons, together with a dilaton, whose form is suggested by Einstein equations and the AdS metric.