Higgs chameleon
  The existing constraints from particle colliders reveal a suspicious but
nonlethal metastability for our current electroweak vacuum of Higgs potential
in the standard model of particle physics, which is, however, disfavored in the
early Universe if the inflationary Hubble scale is larger than the instability
scale when Higgs quartic self-coupling runs into negative value. Alternative to
previous trials of acquiring a positive effective mass-squared from Higgs
quadratic couplings to Ricci scalar or inflaton field, we propose a third
approach to stabilize the Higgs potential in the early Universe by regarding
Higgs as chameleon coupled to inflaton alone without conflicting to the present
constraints on either Higgs or chameleon.
