Pseudo scalar contributions to light-by-light correction of muon g-2 in AdS/QCD

TL;DR

This paper uses holographic QCD models within the AdS/CFT framework to calculate the pseudo scalar contributions to the muon g-2 light-by-light scattering correction, providing results consistent with prior estimates.

Contribution

It introduces a holographic approach to compute hadronic light-by-light contributions to muon g-2, considering multiple flavor symmetries in a 5D AdS model.

Findings

Total pseudo scalar contribution to muon g-2: 10.7 x 10^(-10)

Results align with previous theoretical estimates

Demonstrates the viability of holographic QCD for g-2 calculations

Abstract

We have performed a holographic calculation of the hadronic contributions to the anomalous magnetic moment of the muon, using the gauge/gravity duality. We study a model of holographic QCD in the five dimensional AdS background with a hard-wall cutoff. Both 5D SU(2) and U(3) flavor gauge symmetries are considered for the neutral pion, eta and eta' contributions to the hadronic corrections. We find the total light-by-light contributions of pseudo scalars to the muon anomalous magnetic moment, a_mu=10.7 x 10^(-10), which is consistent with previous estimates, based on other approaches.