Two-Higgs-doublet model of type-II confronted with the LHC run-I and run-II data

Abstract

We examine the parameter space of two-Higgs-doublet model of type-II after imposing the relevant theoretical and experimental constraints from the precision electroweak data, $B$-meson decays, the LHC run-I and run-II data. We find that the searches for Higgs via the $\tau \bar{\tau },WW,ZZ,\gamma \gamma ,hh,hZ,HZ,AZ$ channels can give strong constraints on the CP-odd Higgs $A$ and heavy CP-even Higgs $H$, and the parameter space excluded by each channel is respectively carved out in detail. The surviving samples are discussed in two different of regions: (i) In the SM-like coupling region of the 125 GeV Higgs, $m_A$ is allowed to be as low as 350 GeV, and $\tan \beta$ is imposed a strong upper limit. $m_H$ is allowed to be as low as 200 GeV for the proper $\tan \beta$, $\sin (\beta -\alpha )$ and $m_A$, but is required to be larger than 300 GeV for $m_A=700$ GeV. (ii) In the wrong sign Yukawa coupling of the 125 GeV, $\tan \beta$ and $\sin (\beta -\alpha )$ can be imposed upper limits by $b\bar{b}\to A/H\to \tau \bar{\tau }$ channel and lower limits by the $A\to hZ$ channel. $m_A$ and $m_H$ are respectively allowed to be as low as 60 GeV and 200 GeV, but 320 GeV $<m_A<$ 500 GeV is excluded for $m_H=$ 700 GeV.

Comments: 20 pages, 1 table, 6 figures, major changes