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Abstract:
Standard Model Vacuum Stability and some Implications for Higgs
In
ation
The discovery of the Higgs particle has completed the SM. With the current
measured Higgs and Top masses, the SM could survive up to the Planck scale.
The SM cannot be a complete picture as some experimental and observational
facts require the extension of the SM, however some of the extensions do not
require the embedding of the SM into high energy scale, prompting the possibility
that there is no new physics up to the Planck scale. We will tackle this issue
and investigate the vacuum stability of the SM Higgs eld and its interplay
with possible new physics, parametrized by higher dimensional operators. Also
the role of the measurement of the top mass at hadron colliders in the context
of vacuum stability is discussed. Detailed matching conditions for the RGE
and the metastability issue will be given. Possible implications of the BICEP2
claim are given and the eect of running couplings for the Higgs in
ation will
be reexamined, which is crucial to determine whether the Higgs in
ation is still
a viable scenario.
