# The $\nu$THDM with the Inverse Seesaw Mechanisms

## TL;DR

This paper explores an extended neutrino model combining the $
u$THDM with inverse seesaw mechanisms, analyzing its effects on electroweak precision observables, lepton flavor violation, and muon g-2, with implications for future collider experiments.

## Contribution

It introduces a novel combination of $
u$THDM with inverse seesaw mechanisms and evaluates its phenomenological impacts on electroweak and flavor observables.

## Key findings

- Corrections to Z-resonance parameters can be constrained or observed in future experiments.
- Yukawa couplings involving sterile neutrinos can be of order one at large $ an eta$.
- Model predicts measurable effects on muon g-2 and lepton flavor violation.

## Abstract

In this paper, we combine the $\nu$-Two-Higgs-Doublet-Model ($\nu$THDM) with the inverse seesaw mechanisms. In this model, the Yukawa couplings involving the sterile neutrinos and the exotic Higgs bosons can be of order one in the case of a large $\tan \beta$. We calculated the corrections to the Z-resonance parameters $R_{l_i}$, $A_{l_i}$, $N_{\nu}$, together with the $l_1 \rightarrow l_2 \gamma$ branching ratios, and the muon anomalous $g-2$. Compared with the current bounds and plans for the future colliders, we find that the corrections to the electroweak parameters can be contrained or discovered in much of the parameter space.