Precise predictions for Higgs-masses in the Next-to-Minimal Supersymmetric Standard Model (NMSSM)

Drechsel, Peter; Galeta, Leonardo; Heinemeyer, S.; Weiglein, G.

doi:10.22323/1.234.0186

Cited by 6 publications

(31 citation statements)

References 6 publications

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“…We observe that the Higgs mass predictions of NMSSMTools for very heavy sfermions may not be entirely reliable, as a resummation of large log( mQ m t ) may be necessary: such effects are addressed, e.g. in [88] but the details of the correspondence between the parameters and the spectrum are of secondary importance for our conclusions. Note that all the considered points satisfy the phenomenological tests implemented within NMSSMTools -except maybe (g − 2) μ (satisfied for P4 and P9) -and HiggsBounds within 2 σ .…”

Section: Benchmark Pointsmentioning

confidence: 87%

The NMSSM lives: with the 750 GeV diphoton excess

et al. 2016

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We propose an NMSSM scenario that can explain the excess in the diphoton spectrum at 750 GeV recently observed by ATLAS and CMS. We show that in a certain limit with a very light pseudoscalar one can reproduce the experimental results without invoking exotic matter. The 750 GeV excess is produced by two resonant heavy Higgs bosons with masses ∼750 GeV, which subsequently decay to two light pseudoscalars. Each of these decays to collimated photon pairs that appear as a single photon in the electromagnetic calorimeter. A mass gap between heavy Higgses mimics a large width of the 750 GeV peak. The production mechanism, containing a strong component via initial b quarks, ameliorates a possible tension with 8 TeV data compared to other production modes. We also discuss other constraints, in particular from low-energy experiments. Finally, we discuss possible methods that could distinguish our proposal from other physics models describing the diphoton excess in the Run-II of the LHC.

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Section: Benchmark Pointsmentioning

confidence: 87%

The NMSSM lives: with the 750 GeV diphoton excess

et al. 2016

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“…Nevertheless, quantum corrections were still shown to contribute significantly especially in the prediction of the SMlike Higgs boson mass [26,68,70,74,[78][79][80][81]. In this paper we will investigate how important the unique loop corrections of the μνSSM beyond the NMSSM are in realistic scenarios.…”

Section: The μνSsm Higgs Potentialmentioning

confidence: 99%

“…The complexity of the μνSSM Higgs scalar sector becomes evident when we compare the numbers of free parameters (30) with the one in the real MSSM (7) [55] and the NMSSM (12) [26]. While the number of free parameters is fixed, we are free to replace some of the parameters by physical parameters.…”

Section: Renormalization Of the Higgs Potential At One-loopmentioning

confidence: 99%

“…As in the NMSSM, the couplings of the doublet-like Higgses to the gauge-singlet right-handed sneutrino provide additional contributions to the tree-level mass of the SM-like Higgs boson, relaxing the prediction of the MSSM, that it is bounded from above by the Z boson mass. Still it was shown in the NMSSM [26] that a consistent treatment of the quantum corrections is necessary for accurate Higgs mass predictions (see also Refs. [27][28][29]).…”

Section: Introductionmentioning

confidence: 99%

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Precise prediction for the Higgs-boson masses in the $$\mu \nu $$ μ ν SSM

2018

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The μνSSM is a simple supersymmetric extension of the Standard Model (SM) capable of predicting neutrino physics in agreement with experiment. In this paper we perform the complete one-loop renormalization of the neutral scalar sector of the μνSSM with one generation of right-handed neutrinos in a mixed on-shell/DR scheme. The renormalization procedure is discussed in detail, emphasizing conceptual differences to the minimal (MSSM) and next-to-minimal (NMSSM) supersymmetric standard model regarding the field renormalization and the treatment of nonflavor-diagonal soft mass parameters, which have their origin in the breaking of R-parity in the μνSSM. We calculate the full one-loop corrections to the neutral scalar masses of the μνSSM. The one-loop contributions are supplemented by available MSSM higher-order corrections. We obtain numerical results for a SM-like Higgs boson mass consistent with experimental bounds. We compare our results to predictions in the NMSSM to obtain a measure for the significance of genuine μνSSM-like contributions. We only find minor corrections due to the smallness of the neutrino Yukawa couplings, indicating that the Higgs boson mass calculations in the μνSSM are at the same level of accuracy as in the NMSSM. Finally we show that the μνSSM can accomodate a Higgs boson that could explain an excess of γ γ events at ∼ 96 GeV as reported by CMS, as well as the 2 σ excess of bb events observed at LEP at a similar mass scale.

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“…The renormalization constants δ|λ|, δ|κ|, δφ λ , δφ κ , δξ , δξ s and δ|A κ | are fixed by DR conditions imposed on trilinear vertices involving scalar, CP-even Higgs fields φ 1,2,s , the singlinoS, and the charged higgsino fieldsH ± , in the interaction basis in analogy to the procedure outlined in [129]. The renormalization condition imposed on the renormalized three-point functionˆ i jk for three arbitrary fields i, j and k readŝ i jk denote the vertex function at the treelevel and one-loop order, respectively, and δ i jk denotes the counterterm.…”

Section: Renormalization Conditions At the One-loop Ordermentioning

confidence: 99%

On-shell neutral Higgs bosons in the NMSSM with complex parameters

2017

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The Next-to-Minimal Supersymmetric Standard model (NMSSM) appears as an interesting candidate for the interpretation of the Higgs measurement at the LHC and as a rich framework embedding physics beyond the Standard Model. We consider the renormalization of the Higgs sector of this model in its CP-violating version, and propose a renormalization scheme for the calculation of on-shell Higgs masses. Moreover, the connection between the physical states and the tree-level ones is no longer trivial at the radiative level: a proper description of the corresponding transition thus proves necessary in order to calculate Higgs production and decays at a consistent loop order. After discussing these formal aspects, we compare the results of our mass calculation to the output of existing tools. We also study the relevance of the on-shell transition matrix in the example of the h i → τ + τ − width. We find deviations between our full prescription and popular approximations that can exceed 10%.

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Precise predictions for Higgs-masses in the Next-to-Minimal Supersymmetric Standard Model (NMSSM)

Cited by 6 publications

References 6 publications

The NMSSM lives: with the 750 GeV diphoton excess

The NMSSM lives: with the 750 GeV diphoton excess

Precise prediction for the Higgs-boson masses in the $$\mu \nu $$ μ ν SSM

On-shell neutral Higgs bosons in the NMSSM with complex parameters

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