Status of the charged Higgs boson in two Higgs doublet models

Arbey, Alexandre; Mahmoudi, F.; Stål, Oscar; Stefaniak, Tim

doi:10.1140/epjc/s10052-018-5651-1

Cited by 173 publications

(193 citation statements)

References 190 publications

(167 reference statements)

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“…[33]. References [34,35] showed that the LHC searches for the charged Higgs fail to constrain the model for m H AE > 500 GeV. Therefore, the search channels for the charged Higgs are not included in this paper.…”

Section: B Theoretical and Experimental Constraintsmentioning

confidence: 99%

Light scalar dark matter extension of the type-II two-Higgs-doublet model

et al. 2018

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We examine the type-II two-Higgs-doublet model with a light scalar dark matter (S) after imposing the constraints from the Higgs searches at the LHC and dark matter experiments. We first assume that both CP-even Higgses (h and H) are portals between the dark matter and standard model (SM) sectors, and the CP-odd Higgs (A) and H are heavier than 130 GeV. We find that the dark matter with a mass of 10-50 GeV is disfavored by the joint constraints of the 125 GeV Higgs signal data, the relic density, XENON1T (2018), and Fermi-LAT. Next, we consider a special scenario in which the heavy CP-even Higgs is taken as the 125 GeV Higgs. The light CP-even Higgs is the only portal between the dark matter and SM sectors, and the dark matter mass is slightly below the Higgs resonance. We find that the signal data of the 125 GeV Higgs restrict tan β to be in the range of 1-1.5 for m h < 62 GeV. The gg → A → hZ and bb → h → τ þ τ − channels at the LHC can impose lower limits and upper limits on tan β, respectively. For appropriate values of tan β, λ h , and m h , the dark matter with a mass of 10-50 GeV is allowed by the constraints of the Higgs searches at the LHC and dark matter experiments. For example, tan β is restricted to be in the range of 1.0-1.5 for 10 GeV < m s < 28 GeV, and m h 2m S > 1.12 is excluded for 30 GeV < m S < 50 GeV.

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Section: B Theoretical and Experimental Constraintsmentioning

confidence: 99%

Light scalar dark matter extension of the type-II two-Higgs-doublet model

et al. 2018

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“…Interestingly, they found that masses below 1 TeV have not been excluded for color-octet scalars as is often claimed in the literature. For a variety of well-motivated 2HDMs, the authors in [55] found that charged-Higgs bosons as light as 75 GeV can still be compatible with all the results from direct charged and neutral Higgs boson searches at LEP and the LHC, as well as the most recent constraints from flavor physics, although this implies severely suppressed charged-Higgs couplings to all fermions. Thus, based on the above observations, we generate randomly numerical points for the model parameters as [34] From the above numerical results, we can make the following observations:…”

Section: Results In the 2hdms With Mfvmentioning

confidence: 82%

K0-K¯0 Mixing in the Minimal Flavor-Violating Two-Higgs-Doublet Models

Cho

et al. 2017

Advances in High Energy Physics

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The two-Higgs-doublet model (2HDM), as one of the simplest extensions of the Standard Model (SM), is obtained by adding another scalar doublet to the SM and is featured by a pair of charged Higgs, which could affect many low-energy processes. In the "Higgs basis" for a generic 2HDM, only one scalar doublet gets a nonzero vacuum expectation value and, under the criterion of minimal flavor violation, the other one is fixed to be either color-singlet or color-octet, which are named as type III and type C 2HDM, respectively. In this paper, we study the charged-Higgs effects of these two models on the 0 − 0 mixing, an ideal process to probe New Physics (NP) beyond the SM. Firstly, we perform a complete one-loop computation of the box diagrams relevant to the 0 − 0 mixing, keeping the mass and momentum of the external strange quark up to the second order. Together with the up-to-date theoretical inputs, we then give a detailed phenomenological analysis, in the cases of both real and complex Yukawa couplings of the charged Higgs to quarks. The parameter spaces allowed by the current experimental data on the mass difference Δ 퐾 and the CP-violating parameter 퐾 are obtained and the differences between these two 2HDMs are investigated, which are helpful to distinguish them from each other from a phenomenological point of view.

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“…In a recent analysis, ATLAS has obtained limits for the H + → tb decay, for which the branching ratio can be sizable in our model [50]. Both searches put no relevant constraints on tan β for M H ± = 500 GeV [51].…”

Section: Jhep07(2018)107mentioning

confidence: 96%

Universal properties of pseudoscalar mediators in dark matter extensions of 2HDMs

Bauer

Klassen

Tenorth

2018

J. High Energ. Phys.

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Abstract:We discuss universal signals of consistent models of pseudoscalar mediators for collider searches for Dark Matter. Keeping only the degrees of freedom that can not be decoupled due to consistency conditions, we present a universality class of simplified models with pseudoscalar mediators and renormalizable couplings to Standard Model fields. We compute stability and perturbativity constraints, constraints from electroweak precision measurements, collider searches for new heavy particles as well as constraints from relic density measurements and indirect detection experiments searching for signals of Dark Matter annihilation into photons. We find that the mono-Z final state is the strongest, universal signal of this class of models, with additional signatures present in the different ultraviolet completions that can be used to distinguish between them.

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Status of the charged Higgs boson in two Higgs doublet models

Cited by 173 publications

References 190 publications

Light scalar dark matter extension of the type-II two-Higgs-doublet model

Light scalar dark matter extension of the type-II two-Higgs-doublet model

K0-K¯0 Mixing in the Minimal Flavor-Violating Two-Higgs-Doublet Models

Universal properties of pseudoscalar mediators in dark matter extensions of 2HDMs

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