SusHi Bento: Beyond NNLO and the heavy- top limit

Harlander, Robert V.; Liebler, Stefan; Mantler, Hendrik

doi:10.1016/j.cpc.2016.10.015

Cited by 182 publications

(175 citation statements)

References 106 publications

(158 reference statements)

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“…We compute the latter two with the program N2HDECAY. The production cross sections through gluon fusion (ggF) and b-quark fusion (bbF) are obtained at next-to-next-to-leading order (NNLO) QCD from SusHi v1.6.0 [95,96] which…”

Section: Jhep03(2017)094mentioning

confidence: 99%

The N2HDM under theoretical and experimental scrutiny

Mühlleitner

Sampaio

Santos

et al. 2017

J. High Energ. Phys.

125

264

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The N2HDM is based on the CP-conserving 2HDM extended by a real scalar singlet field. Its enlarged parameter space and its fewer symmetry conditions as compared to supersymmetric models allow for an interesting phenomenology compatible with current experimental constraints, while adding to the 2HDM sector the possibility of Higgs-toHiggs decays with three different Higgs bosons. In this paper the N2HDM is subjected to detailed scrutiny. Regarding the theoretical constraints we implement tests of tree-level perturbativity and vacuum stability. Moreover, we present, for the first time, a thorough analysis of the global minimum of the N2HDM. The model and the theoretical constraints have been implemented in ScannerS, and we provide N2HDECAY, a code based on HDECAY, for the computation of the N2HDM branching ratios and total widths including the state-ofthe-art higher order QCD corrections and off-shell decays. We then perform an extensive parameter scan in the N2HDM parameter space, with all theoretical and experimental constraints applied, and analyse its allowed regions. We find that large singlet admixtures are still compatible with the Higgs data and investigate which observables will allow to restrict the singlet nature most effectively in the next runs of the LHC. Similarly to the 2HDM, the N2HDM exhibits a wrong-sign parameter regime, which will be constrained by future Higgs precision measurements.

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Section: Jhep03(2017)094mentioning

confidence: 99%

The N2HDM under theoretical and experimental scrutiny

Mühlleitner

Sampaio

Santos

et al. 2017

J. High Energ. Phys.

125

264

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show abstract

“…The decay widths and branching ratios were calculated with HDECAY [75,76], which includes off-shell decays and state-of-the-art QCD corrections. All Higgs boson production cross sections via gluon fusion (ggF) and b-quark fusion (bbF) are obtained from SusHiv1.6.0 [77,78], at NNLO QCD. The SMlike Higgs rates are forced to be within 2 × 1σ of the fitted experimental values given in [79].…”

Section: The 2hdm Parameter Spacementioning

confidence: 99%

High scale impact in alignment and decoupling in two-Higgs-doublet models

et al. 2018

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The two-Higgs-doublet model (2HDM) provides an excellent benchmark to study physics beyond the Standard Model (SM). In this work, we discuss how the behavior of the model at high-energy scales causes it to have a scalar with properties very similar to those of the SM-which means the 2HDM can be seen to naturally favor a decoupling or alignment limit. For a type II 2HDM, we show that requiring the model to be theoretically valid up to a scale of 1 TeV, by studying the renormalization group equations (RGE) of the parameters of the model, causes a significant reduction in the allowed magnitude of the quartic couplings. This, combined with B-physics bounds, forces the model to be naturally decoupled. As a consequence, any nondecoupling limits in type II, like the wrong-sign scenario, are excluded. On the contrary, even with the very constraining limits for the Higgs couplings from the LHC, the type I model can deviate substantially from alignment. An RGE analysis similar to that made for type II shows, however, that requiring a single scalar to be heavier than about 500 GeV would be sufficient for the model to be decoupled. Finally, we show that the 2HDM is stable up to the Planck scale independently of which of the CP-even scalars is the discovered 125 GeV Higgs boson.

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“…The most advanced SUSY Higgs boson production calculations at the LHC are available via the code SusHi [56,57], which are, however, so far restricted to the rMSSM [58]. On the other hand, also particularly relevant are higher-order corrections also for the Higgs boson production at e + e − colliders, where a very high accuracy in the Higgs property determination is anticipated [24].…”

Section: Introductionmentioning

confidence: 99%

Charged Higgs Boson production at $$e^+e^-$$ e + e - colliders in the complex MSSM: a full one-loop analysis

Heinemeyer

Schappacher

2016

Eur. Phys. J. C

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For the search for additional Higgs bosons in the Minimal Supersymmetric Standard Model (MSSM) as well as for future precision analyses in the Higgs sector precise knowledge of their production properties is mandatory. We evaluate the cross sections for the charged Higgs boson production at e + e − colliders in the MSSM with complex parameters (cMSSM). The evaluation is based on a full one-loop calculation of the production mechanism e + e − → H + H − and e + e − → H ± W ∓ , including soft and hard QED radiation. The dependence of the Higgs boson production cross sections on the relevant cMSSM parameters is analyzed numerically. We find sizable contributions to many cross sections. They are, depending on the production channel, roughly of 5-10 % of the tree-level results, but can go up to 20 % or higher. The full one-loop contributions are important for a future linear e + e − collider such as the ILC or CLIC.

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SusHi Bento: Beyond NNLO and the heavy- top limit

Cited by 182 publications

References 106 publications

The N2HDM under theoretical and experimental scrutiny

The N2HDM under theoretical and experimental scrutiny

High scale impact in alignment and decoupling in two-Higgs-doublet models

Charged Higgs Boson production at $$e^+e^-$$ e + e - colliders in the complex MSSM: a full one-loop analysis

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