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

Understand

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.