A Study of the H-dibaryon in Holographic QCD

TL;DR

This paper explores the properties of the H-dibaryon within holographic QCD, using a topological soliton approach derived from string theory, providing a novel theoretical framework for understanding this exotic state.

Contribution

It introduces a formalism for describing the H-dibaryon as an SO(3)-type hedgehog in holographic QCD, a first in this theoretical context.

Findings

H-dibaryon modeled as a topological soliton in holographic QCD

Formalism established for H-dibaryon as an SO(3) hedgehog

Properties investigated in the chiral limit

Abstract

We study the H-dibaryon (uuddss) in holographic QCD for the first time. Holographic QCD is derived from a QCD-equivalent D-brane system ($S^1$-compactified D4/D8/$\overline{\rm D8}$) in the superstring theory via the gauge/gravity correspondence. In holographic QCD, all baryons appear as topological chiral solitons of Nambu-Goldstone bosons and (axial) vector mesons. In this framework, the H-dibaryon can be described as an SO(3)-type hedgehog state. We present the formalism of the H-dibaryon in holographic QCD, and perform the calculation to investigate its properties in the chiral limit.