# The simple interpretations of lepton anomalies in the lepton-specific inert two-Higgs-doublet model

## TL;DR

This paper proposes a lepton-specific inert two-Higgs-doublet model that explains muon and electron g-2 anomalies and lepton universality deviations simultaneously, with specific Yukawa coupling configurations.

## Contribution

It introduces a novel inert two-Higgs-doublet model with specific Yukawa couplings that can simultaneously address multiple lepton anomalies.

## Key findings

- Model explains anomalies within certain parameter spaces
- Yukawa couplings for muon and electron have opposite signs
- Mass constraints: $m_H > 200$ GeV, $m_A, m_{H^ ext{±}} > 500$ GeV

## Abstract

There exist about $3.7\sigma$ positive and $2.4\sigma$ negative deviations in the muon and electron anomalous magnetic moments ($g-2$). Also, some ratios for lepton universality in $\tau$ decays have almost $2\sigma$ deviations from the Standard Model. In this paper, we propose a lepton-specific inert two-Higgs-doublet model. After imposing all the relevant theoretical and experimental constraints, we show that these lepton anomalies can be explained simultaneously in many parameter spaces with $m_H > 200$ GeV and $m_A~(m_{H^\pm})> 500$ GeV for appropriate Yukawa couplings between leptons and inert Higgs. The key point is that these Yukawa couplings for $\mu$ and $\tau$/$e$ have opposite sign.