Muon <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>g</mml:mi><mml:mo>−</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:math> in two-Higgs-doublet models with vectorlike leptons

We calculate contributions to the anomalous magnetic moment of muon from heavy neutral and charged Higgs bosons new leptons in two doublet models extended by vectorlike leptons. present detailed predictions with type-II couplings standard model fermions, motivated a $Z_2$ symmetry supersymmetry. In addition, we compare results find that $Z_{2}$ can generate much larger compared model, even orders magnitude due $\tan^{2}\beta$ enhancement, while satisfying current constraints. As consequence, explanation anomaly requires corrections making this easier probe at future precision machines. Additionally, supersymmetry typically leads smaller as result cancellations. However, identify interesting scenarios where boson fully explain anomaly.