Impact of Higgs physics on the parameter space of the $$\mu \nu \mathrm{SSM}$$

Kpatcha, Essodjolo; López-Fogliani, Daniel E.; Muñoz, Carlos; Austri, Roberto Ruiz de

doi:10.1140/epjc/s10052-020-7859-0

Cited by 21 publications

(38 citation statements)

References 86 publications

(200 reference statements)

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“…Finally, λ and the trilinear parameter T λ not only contribute to these masses for larger values of λ, but also control the mixing between the singlet and the doublet states and hence, they contribute in determining their mass scales as discussed in detail in Ref. [79]. We conclude that the relevant lowenergy parameters in the Higgs-RH sneutrino sector are:…”

Section: Introductionmentioning

confidence: 66%

“…Although the value of μ used above is reasonable, many other values reproducing the correct Higgs physics can be obtained [79], and in particular larger ones. Thus we have also studied points with λ = 0.126, similar to the value above, but with a larger value for the vev v R = 3000 GeV giving rise to μ = 801.9 GeV.…”

Section: Parameter Analysismentioning

confidence: 92%

“…Other benchmark parameters relevant for Higgs physics are fixed to appropriate values, as shown in Table 1. We choose a small/moderate value for λ ≈ 0.1, thus we are in a similar situation as in the MSSM and moderate/large values of tan β, |T u 3 |, and scalar top masses are necessary to obtain through loop effects the correct SM-like Higgs mass [77][78][79][80]. To avoid the chargino mass bound of RPC SUSY, this value of λ forces us to choose a moderate/large value of v R to obtain a large enough value of μ (see Eq.…”

Section: Parameter Analysismentioning

confidence: 99%

“…The colored sector is assumed to be heavy and thus beyond the (current) reach of the LHC. This also ensures that the model can contain a scalar boson with a mass around ∼ 125 GeV and properties similar to the ones of the SM Higgs boson [77][78][79][80].…”

Section: Introductionmentioning

confidence: 99%

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The new $$(g-2)_\mu $$ result and the $$\mu \nu $$SSM

et al. 2021

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The $$\mu \nu \mathrm {SSM}$$ μ ν SSM is a highly predictive alternative model to the MSSM. In particular, the electroweak sector of the model can explain the longstanding discrepancy between the experimental result for the anomalous magnetic moment of the muon, $$(g-2)_\mu $$ ( g - 2 ) μ , and its Standard Model prediction, while being in agreement with all other theoretical and experimental constraints. The recently published MUON G-2 result is within $${0.8}\,\sigma $$ 0.8 σ in agreement with the older BNL result on $$(g-2)_\mu $$ ( g - 2 ) μ . The combined result was announced as $$a_\mu ^{\mathrm{exp}} = (11 659 {206.1}\pm {4.1}) \times 10^{-10}$$ a μ exp = ( 11659 206.1 ± 4.1 ) × 10 - 10 , yielding a new deviation from the Standard Model prediction of $$\Delta a_\mu = ({25.1}\pm {5.9}) \times 10^{-10}$$ Δ a μ = ( 25.1 ± 5.9 ) × 10 - 10 , corresponding to $${4.2}\,\sigma $$ 4.2 σ . Using this improved bound we update the analysis in the $$\mu \nu \mathrm {SSM}$$ μ ν SSM as presented in Kpatcha et al. (Eur Phys J C 81(2):154. arXiv:1912.04163 [hep-ph], 2021) and set new limits on the allowed parameters space of the electroweak sector of the model. We conclude that significant regions of the model can explain the new $$(g-2)_\mu $$ ( g - 2 ) μ data.

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Section: Introductionmentioning

confidence: 66%

Section: Parameter Analysismentioning

confidence: 92%

Section: Parameter Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The new $$(g-2)_\mu $$ result and the $$\mu \nu $$SSM

et al. 2021

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“…However, the three left sneutrinos are almost decoupled, and we are left with the doublet-like pseudoscalar and the three right sneutrinos contributing to this channel. The latter states can be even lighter than the SM-like Higgs [6,69]. The predictions of these scenarios could be constrained with the ATLAS searches [70].…”

Section: Constraints From the Lhcmentioning

confidence: 96%

$$U(1)'$$ extensions of the $$\mu \nu \mathrm{SSM}$$

et al. 2021

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In the $$\mu \nu $$ μ ν SSM, the presence of R-parity violating couplings involving right-handed (RH) neutrinos solves simultaneously the $$\mu $$ μ - and $$\nu $$ ν -problems. We explore extensions of the $$\mu \nu $$ μ ν SSM adding a $$U(1)'$$ U ( 1 ) ′ gauge group, which provides the RH neutrinos with a non-vanishing charge. In these models, dubbed U$$\mu \nu $$ μ ν SSM, the anomaly cancellation conditions impose the presence of exotic quarks in the spectrum that are vector-like under the standard model (SM) gauge group: either three pairs SU(2) quark singlets, or a pair of quark singlets together with a pair of quark doublets. Several singlets under the SM group can also be present, with the $$U(1)'$$ U ( 1 ) ′ charges making distinctions among them, and therefore allowing different types of couplings. Some of these singlets dynamically generate Majorana masses for the RH neutrinos, and others can be candidates for dark matter. The useful characteristics of models with $$U(1)'$$ U ( 1 ) ′ s are also present in U$$\mu \nu $$ μ ν SSM models: baryon-number-violating operators as well as explicit Majorana masses and $$\mu $$ μ terms are forbidden, and the domain wall problem is avoided. The phenomenology of U$$\mu \nu $$ μ ν SSM models is very rich. We analyze the experimental constraints on their parameter space, specially on the mass and mixing of the new $$Z'$$ Z ′ boson. In addition to the exotic quarks, which can hadronize inside the detector or decay producing SM particles, the U$$\mu \nu $$ μ ν SSM models can also have new signals such as decays of the $$Z'$$ Z ′ to sparticle pairs like right sneutrinos, charginos or neutralinos. Besides, $$Z'$$ Z ′ and Higgs mediated annihilations and interactions with the visible sector of WIMP dark matter particles, can also be present.

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Lightest Higgs boson decays h → MZ in the μ from ν supersymmetric standard model

Liu

Zhang

Yang

et al. 2023

J. High Energ. Phys.

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We study the lightest Higgs boson decays h → MZ in the μ from ν supersymmetric standard model (μνSSM), where M is a vector meson (ρ, ω, ϕ, J/Ψ, Υ). Compared to the minimal supersymmetric standard model (MSSM), the μνSSM introduces three right-handed neutrino superfields, which lead to the mixing of the Higgs doublets with the right-handed sneutrinos. The mixing affects the lightest Higgs boson mass and the Higgs couplings. In suitable parameter space, the μνSSM can give large new physics (NP) contributions to the signal strengths of h → MZ and h → γγ, which may be detected by a 100 TeV collider or the other future high energy colliders.

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Impact of Higgs physics on the parameter space of the $$\mu \nu \mathrm{SSM}$$

Cited by 21 publications

References 86 publications

The new $$(g-2)_\mu $$ result and the $$\mu \nu $$SSM

The new $$(g-2)_\mu $$ result and the $$\mu \nu $$SSM

$$U(1)'$$ extensions of the $$\mu \nu \mathrm{SSM}$$

Lightest Higgs boson decays h → MZ in the μ from ν supersymmetric standard model

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