Tensor meson couplings in AdS/QCD

TL;DR

This paper investigates the interactions of the $f_2(1270)$ tensor meson within AdS/QCD models, comparing results with traditional methods to validate the holographic approach for spin-2 mesons.

Contribution

It provides a novel holographic calculation of tensor meson couplings and compares them with established methods, demonstrating the reliability of AdS/QCD models for spin-2 mesons.

Findings

Qualitative agreement with dispersion relation results.

Validation of AdS/QCD for tensor meson interactions.

Consistent coupling constants with traditional approaches.

Abstract

We study the hadronic and radiative couplings of the $f_2(1270)$ meson within the hard- and soft-wall models of AdS/QCD. The results for the tensor meson-nucleon-nucleon coupling ($g_{f_2NN}$) and tensor meson-photon-vector meson coupling ($g_{f_2\gamma\rho}$) are compared to the ones obtained by using the dispersion relations and amplitude methods, respectively. Qualitative agreement with different analyses implies the reliability of the holographic description of spin-2 meson.