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Surveying extended GMSB models with m h = 125 GeV

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Abstract

In order to achieve maximal stop mixing and m h = 125 GeV, we consider extensions of minimal GMSB that include marginal MSSM-messenger superpotential interactions. Using a new approach to analytic continuation in superspace, we derive general formulas for the soft masses in the presence of such interactions, correctly taking into account the role of MSSM-messenger mixing in a general framework for the first time. We classify and catalog all possible such interactions consistent with perturbative SU(5) unification, and we survey the impact of turning on one interaction at a time, from the point of view of fine tuning, spectrum and phenomenology. We find that the best models are fine-tuned to the sub-percent level and are accessible at the 14 TeV LHC. We highlight potential search strategies that can probe the characteristic spectra of these models.

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Authors and Affiliations

  1. NHETC, Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, NJ, 08854, U.S.A.

    Jared A. Evans & David Shih

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  1. Jared A. Evans
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  2. David Shih
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Correspondence to Jared A. Evans.

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ArXiv ePrint: 1303.0228

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Evans, J.A., Shih, D. Surveying extended GMSB models with m h = 125 GeV. J. High Energ. Phys. 2013, 93 (2013). https://doi.org/10.1007/JHEP08(2013)093

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