Abstract
The mu nu mathrm {SSM} 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 mu nu mathrm {SSM} with three generation of right-handed neutrinos in a mixed on-shell/smash {overline{mathrm {DR}}} scheme. We calculate the full one-loop corrections to the neutral scalar masses of the mu nu mathrm {SSM}. 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 mu nu mathrm {SSM} in scenarios in which one or more right-handed sneutrinos are lighter than the SM-like 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 mu nu mathrm {SSM} can be probed without the need to propose model dependent searches at colliders. Finally, we demonstrate how the mu nu mathrm {SSM} can simultaneously accommodate two excesses measured at LEP and LHC at sim 96,, mathrm {GeV} at the 1sigma level, while at the same time reproducing neutrino masses and mixings in agreement with neutrino oscillation measurements.
Highlights
The scalar particle at ∼ 125 GeV discovered by the ATLAS [1] and CMS [2] experiments has so far shown to be consistent with the Standard Model (SM) Higgs-boson prediction
We showed that the contributions from the (s)top- and the (s)bottom-sector are dominant in the μfrom-ν Supersymmetric Standard Model (μνSSM), proving that the combination of the one-loop result together with the two-loop contributions from FeynHiggs provides a calculation of the SM
The μνSSM is a simple SUSY extension of the SM that is capable of describing neutrino physics in agreement with experimental data
Summary
The scalar particle at ∼ 125 GeV discovered by the ATLAS [1] and CMS [2] experiments has so far shown to be consistent with the Standard Model (SM) Higgs-boson prediction. A hybrid Higgs-boson mass calculation combining effective field theory and fixed-order calculations for a generic class of SUSY models is publicly available in the code FlexibleSUSY [98], using the expression for the renormalization group equations and fixed-order self-energies as they are calculated by SARAH. In a previous publication we presented the first calculation of radiative corrections to the neutral scalars in a mixed OS-DR scheme for the μνSSM with only one generation of right-handed neutrinos [99]. We are able to present benchmark scenarios of the μνSSM accurately accommodating a SM-like Higgs boson at ∼ 125 GeV, as well as correct neutrino mass differences and mixing angles.
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