Heavy-Light Mesons from the AdS/CFT Correspondence

TL;DR

This paper models heavy-light mesons using holography, analyzing string dynamics between D7 branes in different geometries to compute meson masses and compare with real-world data.

Contribution

It introduces a holographic framework for heavy-light mesons, incorporating chiral symmetry breaking and providing mass calculations relevant to phenomenology.

Findings

Meson masses computed in AdS and Constable-Myers geometries

Chiral symmetry breaking effects included

Potential relevance to b-quark sector

Abstract

We propose a holographic description of heavy-light mesons, i.e. of mesons containing a light and a heavy quark. In the semi-classical string limit, we look at the dynamics of strings tied between two D7 branes. We consider this setup both in an AdS background and in the non-supersymmetric Constable-Myers geometry which induces chiral symmetry breaking. We compute the meson masses in each case. Finally we discuss the relevance of this result for phenomenological comparison to the physical b-quark sector.