Tuesday, February 14, 2012

1202.2751 (Motoi Endo et al.)

Vacuum Stability Bound on Extended GMSB Models    [PDF]

Motoi Endo, Koichi Hamaguchi, Sho Iwamoto, Norimi Yokozaki
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.
View original: http://arxiv.org/abs/1202.2751

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