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

Tatsuo Kobayashi·Haruhiko Terao·Akito Tsuchiya
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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.

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Tatsuo Kobayashi, Haruhiko Terao, Akito Tsuchiya. 2006-06-14. Fine-tuning in gauge mediated supersymmetry breaking models and induced top Yukawa coupling. https://doi.org/10.1103/physrevd.74.015002

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