The lightest Higgs boson mass of the MSSM at three-loop accuracy

Fazio, A. R.

doi:10.1016/j.nuclphysb.2019.03.008

Cited by 27 publications

(29 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We have recently presented a fixed-order computation of the lightest rMSSM Higgs boson mass which extends the validity of the leading three-loop corrections to the whole parameter space of the rMSSM [34]. This computation is in a very good agreement with the results of H3m [33] for low SUSY scales (M SU SY 1.2 TeV).…”

Section: Discussionsupporting

confidence: 61%

“…Thus, the dominant contributions to ij in eq. (3) involve the SM parameters h t (top Yukawa coupling), M t (top quark mass), α s (strong coupling constant) and the MSSM parameters Mg (gluino mass), θ t (stop mixing angle),m q1,2 (squark masses) and A q (soft breaking parameters) where q = u, d, t, b, c, s. Concerning the renormalization of the self-energy corrections, that is to say, the determination of the mass counter-terms δ (l) M 2 ij , we follow the mixed OS/DR scheme defined in [34]. Thus, the electroweak gaugeless limit at O(α t α 2 s ) and the approximation of zero external momentum are assumed.…”

Section: Three-loop Fixed-order Calculation Of M Hmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of the EFT hybrid and three-loop fixed-order calculations of the lightest MSSM Higgs boson mass

Fazio

2019

Phys. Rev. D

View full text Add to dashboard Cite

The lightest Higgs boson mass of the Minimal Supersymmetric Standard Model has been recently computed diagrammatically at the three-loop order in the whole supersymmetric parameters space of the SUSY-QCD sector. The code FeynHiggs combines one-and two-loop fixed-order with the effective-fieldtheory calculations for the same Higgs mass. The two numerical predictions agree considering the scenario of only one SUSY-scale and vanishing stop mixing parameter below 10 TeV. The agreement is improved by introducing an additional supersymmetric scale and a non-zero stop mixing. Additionally, the combined CMS/ATLAS Higgs mass value was used to derive an upper bound on the needed SUSY scale. In the considered scenario, values above the scale 12.5±1.2 TeV are excluded.

show abstract

Section: Discussionsupporting

confidence: 61%

Section: Three-loop Fixed-order Calculation Of M Hmentioning

confidence: 99%

Comparison of the EFT hybrid and three-loop fixed-order calculations of the lightest MSSM Higgs boson mass

Fazio

2019

Phys. Rev. D

View full text Add to dashboard Cite

show abstract

“…It was proven that regularization by dimensional reduction preserves supersymmetry at the required three-loop order [75]. A new calculation of the three-loop contributions of the O(α t α 2 s ) extends the validity of these corrections to the whole parameter space of the CP-conserving MSSM [76]. Most recently, the leading log-arithmic terms of the O(α t α 3 s ) have been obtained (see the updated version of the public code Himalaya) [77].…”

Section: Introductionmentioning

confidence: 88%

Precise prediction for the Higgs-Boson masses in the $${\varvec{\mu }}{\varvec{\nu }}$$SSM with three right-handed neutrino superfields

2019

View full text Add to dashboard Cite

The μνSSM is a simple supersymmetric extension of the Standard Model (SM) capable of describing neutrino physics in agreement with experiments. We perform the complete one-loop renormalization of the neutral scalar sector of the μνSSM with three generation of righthanded neutrinos in a mixed on-shell/DR scheme. 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, while simultaneously agreeing with neutrino oscillation data. We illustrate the distinct phenomenology of the μνSSM in scenarios in which one or more right-handed sneutrinos are lighter than the SMlike Higgs boson, which might be substantially mixed with them. These scenarios are experimentally accessible, on the one hand, through direct searches of the right-handed sneutrinos decaying into SM particles, and on the other hand, via the measurements of the SM-like Higgs-boson mass and its couplings. In this way the parameter space of the μνSSM can be probed without the need to propose model dependent searches at colliders. Finally, we demonstrate how the μνSSM can simultaneously accommodate two excesses measured at LEP and LHC at ∼ 96 GeV at the 1σ level, while at the same time reproducing neutrino masses and mixings in agreement with neutrino oscillation measurements. a

show abstract

“…Consequently, much work has been invested to evaluate the relevant quantum corrections. In the most direct diagrammatic fixed-order approach, full one-loop, the dominant two-loop as well as partial three-loop corrections have been calculated (for recent works see [13][14][15][16][17][18][19]). This fixed-order approach, however, contains large logarithmic contributions, which can limit the accuracy of the perturbative expansion in case of a high SUSY scale.…”

Section: Introductionmentioning

confidence: 99%

Theoretical uncertainties in the MSSM Higgs boson mass calculation

et al. 2020

View full text Add to dashboard Cite

The remaining theoretical uncertainties from unknown higher-order corrections in the prediction for the light Higgs-boson mass of the MSSM are estimated. The uncertainties associated with three different approaches that are implemented in the publicly available code FeynHiggs are compared: the fixed-order diagrammatic approach, suitable for low SUSY scales, the effective field theory (EFT) approach, suitable for high SUSY scales, and the hybrid approach which combines the fixed-order and the EFT approaches. It is demonstrated for a simple single-scale scenario that the result based on the hybrid approach yields a precise prediction for low, intermediate and high SUSY scales with a theoretical uncertainty of up to ∼ 1.5 GeV for large stop mixing and ∼ 0.5 GeV for small stop mixing. The uncertainty estimate of the hybrid calculation approaches the uncertainty estimate of the fixed-order result for low SUSY scales and the uncertainty estimate of the EFT approach for high SUSY scales, while for intermediate scales it is reduced compared to both of the individual results. The estimate of the theoretical uncertainty is also investigated in scenarios with more than one mass scale. A significantly enhanced uncertainty is found in scenarios where the gluino is substantially heavier than the scalar top quarks. The uncertainty estimate presented in this paper will be part of the public code FeynHiggs.

show abstract

The lightest Higgs boson mass of the MSSM at three-loop accuracy

Cited by 27 publications

References 38 publications

Comparison of the EFT hybrid and three-loop fixed-order calculations of the lightest MSSM Higgs boson mass

Comparison of the EFT hybrid and three-loop fixed-order calculations of the lightest MSSM Higgs boson mass

Precise prediction for the Higgs-Boson masses in the $${\varvec{\mu }}{\varvec{\nu }}$$SSM with three right-handed neutrino superfields

Theoretical uncertainties in the MSSM Higgs boson mass calculation

Contact Info

Product

Resources

About