Empirically Consistent Electroweak Radiative Corrections with the Two-Higgs Doublet Model

TL;DR

This paper demonstrates that extending the Higgs sector to include two Higgs doublets allows electroweak radiative corrections to align with experimental data, predicting specific mass ranges for additional Higgs bosons.

Contribution

It provides an empirical analysis of two-Higgs doublet models showing their consistency with electroweak precision measurements and predicts Higgs boson mass ranges.

Findings

Electroweak corrections fit experimental data with two Higgs doublets.

Charged Higgs mass range influences neutral Higgs mass limits.

Neutral Higgs mass can be arbitrarily large if charged Higgs is within certain ranges.

Abstract

The electroweak radiative correction, which turned out to be marginal within the standard electroweak model having the minimal Higgs sector in view of the present experimental information, fits well the experiment when the Higgs sector is extended to have two Higgs doublets. We predict the range where the charged and CP odd Higgs boson masses would lie, taking the two CP even neutral Higgs boson masses to be degenerate which makes the analysis in multiparameter space feasible. It is shown that the mass of neutral Higgs doublet boson can arbitrarily be large consistently with the $W$ mass, if the charged Higgs boson is present and it's mass lies in some appropriate ranges.