<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>b</mml:mi><mml:mtext mathvariant="normal">−</mml:mtext><mml:mi>τ</mml:mi></mml:math>Yukawa (non)unification in the constrained minimal supersymmetric model

Monaco, Maurizio; Spinrath, Martin

doi:10.1103/physrevd.84.055009

Cited by 2 publications

(2 citation statements)

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“…Such dependence allows us to identify regions of the parameter space preferred by given Yukawa relations and, on the other hand, it might provide a powerful tool to test highenergy physics, such as GUT or fermion mass models, once signals of SUSY would be discovered at the LHC. For recent examples of such interplay, see [9][10][11]. In the view of the present and future SUSY searches at the LHC, it can be of interest to check whether peculiar Yukawa GUT ratios, and thus high-energy SUSY scenarios, are favoured by naturalness considerations.…”

Section: Introductionmentioning

confidence: 99%

Naturalness and GUT scale Yukawa coupling ratios in the constrained MSSM

et al. 2012

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We analyse the fine-tuning in the Constrained Minimal Supersymmetric Standard Model (CMSSM) in the light of the present and expected ATLAS and CMS SUSY searches. Even with 10 fb −1 of data and no discovery of SUSY valid regions might remain with finetuning less than 20. Moreover we investigate the fine-tuning price of GUT scale Yukawa coupling relations. Considering a 2σ constraint for (g − 2) µ and fine-tuning less than 30 yields an allowed range of y τ /y b = [1.31, 1.70], which points towards the alternative GUT prediction y τ /y b = 3/2. Relaxing the (g − 2) µ constraint to 5σ extends the possible region to [1.02,1.70], allowing for approximate b − τ Yukawa coupling unification.

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Section: Introductionmentioning

confidence: 99%

Naturalness and GUT scale Yukawa coupling ratios in the constrained MSSM

et al. 2012

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“…It has been shown in [9] that in many SUSY scenarios the new SU(5) relations like y τ =y b ¼ − 3 2 or y μ =y s ¼ 9 2 or 6 are often favored compared to bottom-tau Yukawa unification or the Georgi-Jarlskog relation. The implications of these new relations were studied, for instance, in [14][15][16]. In any case, towards making progress in building SUSY or non-SUSY GUT models of flavor, it is important to be aware of the full set of possibilities and to study their phenomenological consequences.…”

Section: Introductionmentioning

confidence: 99%

GUT predictions for quark-lepton Yukawa coupling ratios with messenger masses from non-singlets

Antusch

King²,

Spinrath³

2014

Phys. Rev. D

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We propose new predictions from grand unified theories (GUTs) [applicable to both supersymmetric (SUSY) and non-SUSY models] for the ratios of quark and lepton Yukawa couplings. These new predictions arise from splitting the masses of the messenger fields for the GUT-scale Yukawa operators by Clebsch-Gordan factors from GUT symmetry breaking. This has the effect that these factors enter inversely in the predicted quark-lepton Yukawa coupling ratios, leading to new possible GUT predictions. We systematically construct the new predictions that can be realized in this way in SU(5) GUTs and Pati-Salam unified theories and discuss model building applications.

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b−τYukawa (non)unification in the constrained minimal supersymmetric model

Cited by 2 publications

References 30 publications

Naturalness and GUT scale Yukawa coupling ratios in the constrained MSSM

Naturalness and GUT scale Yukawa coupling ratios in the constrained MSSM

GUT predictions for quark-lepton Yukawa coupling ratios with messenger masses from non-singlets

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