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Vacuum stability bound on extended GMSB models

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Abstract

Extensions of GMSB models were recently explored to explain the recent reports of the Higgs boson mass around 124 − 126 GeV. Some models predict a large μ term, which can spoil the vacuum stability of the universe. We study two GMSB extensions: i) the model with a large trilinear coupling of the top squark, and ii) that with extra vector- like matters. In both models, the vacuum stability condition provides upper bounds on the gluino mass if combined with the muon g − 2. The whole parameter region is expected to be covered by LHC at \( \sqrt {s} = {\text{14TeV}} \). The analysis is also applied to the mSUGRA models with the vector-like matters.

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Authors and Affiliations

  1. Department of Physics, University of Tokyo, Tokyo, 113-0033, Japan

    Motoi Endo, Koichi Hamaguchi, Sho Iwamoto & Norimi Yokozaki

  2. Institute for the Physics and Mathematics of the Universe (IPMU), University of Tokyo, Chiba, 277-8583, Japan

    Motoi Endo & Koichi Hamaguchi

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  1. Motoi Endo
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  2. Koichi Hamaguchi
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Correspondence to Koichi Hamaguchi.

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ArXiv ePrint: 1202.2751

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Endo, M., Hamaguchi, K., Iwamoto, S. et al. Vacuum stability bound on extended GMSB models. J. High Energ. Phys. 2012, 60 (2012). https://doi.org/10.1007/JHEP06(2012)060

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