Fine-tuning in gauge mediated supersymmetry breaking models and induced top Yukawa coupling

Abstract

It is shown that fine-tuning of the Higgs parameters stronger than a few % is required at the best in the models with gauge mediated supersymmetry breaking. With the aim of solving this problem, we consider a new type of models in which the top Yukawa coupling is induced at TeV scale through mass mixing with unknown matter fields. Then it is found that the fine-tuning problem can be eliminated essentially. We discuss some phenomenological features of this model and also consider the extension to the next-to-minimal models.

14 pages, 9 Postscript figures, uses revtex4.sty, Some comments and a reference added, to appear in Phys. Rev. D

References in corpus (15)

• Little Higgs Review
• The Well-Tempered Neutralino
• Escaping the Large Fine Tuning and Little Hierarchy Problems in the Next to Minimal Supersymmetric Model and h-> aa Decays
• Supersymmetry, Naturalness, and Signatures at the LHC
• A Solution to the Supersymmetric Fine-Tuning Problem within the MSSM
• Little SUSY hierarchy in mixed modulus-anomaly mediation
• A Fat Higgs with a Fat Top
• Relaxing the Upper Bound on the Mass of the Lightest Supersymmetric Higgs Boson
• Double protection of the Higgs potential
• Localized Supersoft Supersymmetry Breaking
• The Super-little Higgs
• Electroweak symmetry breaking in supersymmetric models with heavy scalar superpartners
• Naturally heavy superpartners and a Little Higgs
• Minimally Fine-Tuned Supersymmetric Standard Models with Intermediate-Scale Supersymmetry Breaking
• Induced top Yukawa coupling and suppressed Higgs mass parameters

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• A New Measure of Fine Tuning
• Fine Tuning in the Constrained Exceptional Supersymmetric Standard Model
• Fine Tuning in General Gauge Mediation
• The Minimally Tuned Minimal Supersymmetric Standard Model
• Z' mass limits and the naturalness of supersymmetry
• Bayesian analysis and naturalness of (Next-to-)Minimal Supersymmetric Models
• SuperTopcolor
• Yukawa Unification in an SO(10) SUSY GUT: SUSY on the Edge
• Stop-mass prediction in naturalness scenarios within MSSM-25
• Threshold corrections to the radiative breaking of electroweak symmetry and neutralino dark matter in supersymmetric seesaw model