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Stability, Higgs Boson Mass and New Physics
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abstract
When the particle with mass $\sim 126$ GeV discovered at LHC is identified with the Higgs boson of the Standard Model, intriguing and challenging questions arise. Among them, the issue of the EW vacuum stability. We find that, despite claims to the contrary, the latter strongly depends on new physics interactions. In particular, if $\tau$ is the lifetime of the EW vacuum, new physics can turn $\tau$ from $\tau >> T_U$ to $\tau << T_U$, where $T_U$ is the age of the Universe.
Forward citations
Cited by 4 Pith papers
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Discovery prospects of a singly-charged scalar at $\mu$TRISTAN
A same-sign muon collider could discover the singly-charged scalar of Type-II seesaw through a lepton-flavor-violating process, and the final lepton flavor could distinguish normal from inverted neutrino mass ordering...
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The Two Scales of New Physics in Loop-Induced Higgs Couplings
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Interpretation of 95 GeV Excess within the Georgi-Machacek Model in Light of Positive Definiteness Constraints
The Georgi-Machacek model keeps viable parameter space for the 95 GeV diphoton and bbbar excesses under positive definiteness constraints, which the paper finds expand the allowed region relative to tree-level bounded...
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