Heavy hadron spectra from spin chains and strings

TL;DR

This paper explores the spectrum of heavy hadrons in a confining gauge theory with a supergravity dual, revealing an integrable structure akin to a Heisenberg spin chain for certain operators.

Contribution

It demonstrates that the mass spectrum of specific hadronic operators corresponds to an integrable spin chain model, bridging gauge theory and string theory predictions.

Findings

Mass spectrum matches Heisenberg spin chain structure

Integrability observed in a sub-sector of operators

Comparison confirms string theory predictions

Abstract

We study the spectrum of hadronic states made up of very massive complex scalar fields in a confining gauge theory admitting a supergravity dual background. We show that for a sub-sector of operators dual to certain spinning strings, the mass spectrum exhibits an integrable structure equal to the Heisenberg spin chain, up to an overall factor. This result is compared with the corresponding string prediction.