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

**Authors:** Masataka Fukugita, Takahiro Kubota  
**arXiv:** [0807.1968](https://arxiv.org/abs/0807.1968)  
**Date:** 2008-07-12  
**Summary page:** https://www.summarizepaper.com/en/paper/0807.1968v1/

## Key points

- Fukugita and Kubota explore electroweak radiative correction in the Higgs sector of the standard electroweak model.
- They find that this correction fits well with experimental data when the Higgs sector is extended to include two Higgs doublets.
- The authors predict where the charged and CP odd Higgs boson masses would lie in this extended model, assuming that the two CP even neutral Higgs boson masses are degenerate.
- If a charged Higgs boson is present and its mass lies in certain appropriate ranges, then the mass of neutral Higgs doublet boson can be arbitrarily large while still being consistent with the $W$ mass measurement.
- Their findings provide important insights into how extending the Higgs sector of the standard electroweak model can improve our understanding of electroweak radiative corrections and bring theoretical predictions into closer agreement with experimental data.

## Summary

In their paper "Empirically Consistent Electroweak Radiative Corrections with the Two-Higgs Doublet Model," Masataka Fukugita and Takahiro Kubota explore the electroweak radiative correction within the standard electroweak model, focusing specifically on the Higgs sector. They find that while this correction is marginal within the minimal Higgs sector, it fits well with experimental data when the Higgs sector is extended to include two Higgs doublets. The authors predict where the charged and CP odd Higgs boson masses would lie in this extended model, assuming that the two CP even neutral Higgs boson masses are degenerate. This assumption makes analysis in multiparameter space feasible. Fukugita and Kubota show that if a charged Higgs boson is present and its mass lies in certain appropriate ranges, then the mass of neutral Higgs doublet boson can be arbitrarily large while still being consistent with the $W$ mass measurement. Their findings provide important insights into how extending the Higgs sector of the standard electroweak model can improve our understanding of electroweak radiative corrections and bring theoretical predictions into closer agreement with experimental data.