g-2 In the custodially protected RS model

TL;DR

This paper evaluates the contribution of leptonic operators in the custodially protected Randall-Sundrum model to the muon's anomalous magnetic moment, finding a significant enhancement over non-protected scenarios and analyzing Higgs exchange effects.

Contribution

It provides a detailed calculation of g-2 contributions in the custodially protected RS model, highlighting the impact of gauge and Higgs exchanges on muon magnetic moment.

Findings

Gauge boson exchange contribution: ~2.72×10^-10 (1 TeV/T)^2

Custodial protection increases g-2 contribution by over 3 times

Higgs exchange can cause sizable, model-dependent corrections

Abstract

We study leptonic operators of dimension six in the custodially protected Randall-Sundrum model. Their contribution to the anomalous magnetic moment of the muon is evaluated. We find that the contribution to g-2 due to diagrams with an internal gauge boson exchange is given by approximately 2.72*10^-10 (1 TeV/T)^2 basically independent of the model parameters except for the KK mass scale T---a factor of more than 3 larger than in a scenario without custodial protection. We also investigate the impact of contributions to the dipole operators due to an internal Higgs exchange, which can provide sizable albeit model-dependent corrections.