Status of the two-Higgs-doublet model of type II

By O. Eberhardt, U. Nierste, M. Wiebusch. 2013

134 citations recorded by the source corpus.

A bstractWe determine the allowed parameter space of the CP-conserving two-Higgs-doublet model (2HDM) of type II with a softly broken Z2 symmetry. Our analysis includes theoretical constraints from vacuum stability and perturbativity as well as experimental constraints from signal strengths of the 126 GeV Higgs boson, the non-observation of additional Higgs resonances and electroweak precision and flavour observables. If the 126 GeV resonance is interpreted as the light CP-even Higgs boson of the 2HDM our analysis shows that scenarios where the couplings of this boson deviate substantially from those of the SM Higgs boson are disfavoured at one standard deviation and completely excluded for small values of tan β. We also discuss bounds on the masses of the heavy 2HDM Higgs bosons and their implications for the possible decay modes of these particles. We find that the region in which both non-standard neutral Higgs bosons are simultaneously lighter than 300 GeV is excluded at two standard deviations.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/9015ca045c67977cdbb6516b4cc3a89d17ecbfd7

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. A. Pilaftsis
2. P. S. Bhupal Dev
3. Igor P. Ivanov
4. A. Broggio
5. E. Chun

In Nuclear and High Energy Physics

1. Igor P. Ivanov
2. P. S. Bhupal Dev
3. A. Pilaftsis
4. S. Vempati
5. K. M. Patel
6. M. Passera
7. A. Broggio
8. E. Chun

Citations in the corpus

• Building and testing models with extended Higgs sectors (2017, background): “As the ATLAS and CMS collaborations were finalizing their Run 1 Higgs results, many analyzes started to appear focusing on heavy Higgs searches and the resulting constraints on the 2HDM parameter space [269, 270, 271, 272, 273, 264, 274, 275, 276, 277, 267, 278, 279].”
• Limiting two-Higgs-doublet models (2014, background): “This point has already been remarked upon in [21, 29].”
• Maximally symmetric two Higgs doublet model with natural standard model alignment (2014, methodology): “For the Higgs couplings to the SM vector bosons and fermions, we use the constraints in the (tanβ, β − α) plane derived from a recent global fit for the Type-II 2HDM [21, 22].”