The Contribution of Charged Bosons with Right-Handed Neutrinos to the Muon g-2 Anomaly in the Twin Higgs Models

TL;DR

This paper investigates how charged bosons and right-handed neutrinos in twin Higgs models can explain the muon g-2 anomaly, considering various experimental constraints to narrow down parameter ranges.

Contribution

It provides a detailed analysis of parameter constraints for charged Higgs and heavy gauge bosons in twin Higgs models related to muon g-2.

Findings

Parameter ranges for lepton coupling y_mu, top Yukawa y_t, and gauge coupling V_mu are established.

Constraints from Higgs fit, electroweak data, and flavor decay are incorporated.

The model can accommodate the muon g-2 anomaly within these parameter ranges.

Abstract

We examine the charged boson and right-handed neutrino contribution to the muon g-2 anomaly in the twin Higgs models with the joint constraints of the Higgs global fit data, the precision electroweak data, the leptonic flavor changing decay \mu \to e\gamma, and the mass requirement of the heavy gauge bosons. It comes out with the conclusion that some parameters such as the coupling of charged Higgs to the lepton y_\mu, the top Yukawa y_t, and the heavy gauge boson coupling to the lepton V_\mu are constrained roughly in the range of 0.12\lesssim y_\mu\lesssim 0.4, 0.4\lesssim y_t\lesssim 0.9, and 0.47\lesssim V_\mu\lesssim 1, respectively.