English

Implications of the new CDF-II $W$-boson mass on two-Higgs-doublet models

High Energy Physics - Phenomenology 2022-10-13 v4

Abstract

We present the implications of the recent measurement of WW boson at CDF II on the two-Higgs-doublet model (2HDM). In the analysis, we impose theoretical bounds such as vacuum stability and perturbative unitarity, and several experimental constraints. In addition, we take into account the measurement of sin2θW(mZ)MSˉ\sin^2\theta_W(m_Z)_{\rm \bar{MS}} on top of the CDF WW-boson mass to investigate how the SS and TT parameters are determined. We explore two possible scenarios depending on whether the Higgs boson observed at the LHC is the lighter or heavier of CPCP-even neutral Higgs bosons for 2HDM type I and II. Using the results, we show how the parameter space is constrained, and compare it with the one based on the PDG average of mWm_W. Furthermore, we explore phenomenological consequences of electroweak precision observables that can be affected by mWm_W within the predictions of the 2HDM, and the reduction in parameter space expected from future measurements at the Future Circular Lepton Collider.

Keywords

Cite

@article{arxiv.2204.06485,
  title  = {Implications of the new CDF-II $W$-boson mass on two-Higgs-doublet models},
  author = {Yang Hwan Ahn and Sin Kyu Kang and Raymundo Ramos},
  journal= {arXiv preprint arXiv:2204.06485},
  year   = {2022}
}

Comments

26 pages, 10 figures. Analysis separated according to CP-even neutral scalar masses. Added estimations using expected FCC-ee precision. Updated to match published version