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 Vacuum Stability Bound on Extended GMSB Models


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Extensions of GMSB models were explored to explain the recent reports of the Higgs boson mass around 124-126 GeV. Some models predict a large mu 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} = 14 TeV. The analysis is also applied to the mSUGRA models with the vector-like matters.



Author: Motoi Endo; Koichi Hamaguchi; Sho Iwamoto; Norimi Yokozaki

Source: https://archive.org/



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