Deuteron electromagnetic form factors and tensor polarization observables in the framework of the hard-wall AdS/QCD model

TL;DR

This paper models deuteron electromagnetic form factors and tensor polarization observables using the hard-wall AdS/QCD framework, providing numerical results that align with experimental data and previous models.

Contribution

It introduces a specific profile function for the deuteron in the hard-wall AdS/QCD model and calculates key form factors and observables, comparing them with experimental and soft-wall model results.

Findings

Form factors match experimental data at various momentum transfers.

Tensor polarization observables are successfully predicted.

The model provides a consistent description within the hard-wall AdS/QCD framework.

Abstract

We study the electromagnetic form factors and tensor polarization observables of the deuteron in the framework of the hard-wall AdS/QCD model. We find a profile function for the bulk twist $\tau=6$ vector field, which describes the deuteron on the boundary and fix the infrared boundary cut-off of AdS space in accordance with the ground state mass of the deuteron. We obtain the deuteron charge monopole, quadrupole, and magnetic dipole form factors and tensor polarization observables from the bulk Lagrangians for the deuteron and photon field interactions. We plot the momentum transfer dependence of the form factors and tensor polarization observables and compare our numerical results with those in the soft-wall model and experimental data.