Large N meson masses from a matrix model

TL;DR

This paper presents a simple and efficient method to compute meson masses in the large N limit using the twisted Eguchi-Kawai model, showing good agreement with other approaches and potential for extension to models with dynamical fermions.

Contribution

It introduces a straightforward formula for meson mass calculation in large N QCD using reduced models, enhancing computational efficiency and extensibility.

Findings

Results agree well with existing determinations

Method is computationally efficient

Extensible to models with dynamical fermions

Abstract

We explain how to compute meson masses in the large $N$ limit using the twisted Eguchi-Kawai model. A very simple formula is derived, and we show how it leads in a fast and efficient way to results which are in fairly good agreement with other determinations. The method is easily extensible to reduced models with dynamical fermions based on the twisted reduction idea.