Running inflation with unitary Higgs
  We consider the renormalization group(RG) improved inflaton potential in
unitarized Higgs inflation where the original Higgs inflation is unitarized by
the addition of a real singlet scalar of sigma-model type. The sigma field
coupling to the Higgs, which is introduced to reproduce a large non-minimal
coupling of the Higgs below the sigma scalar threshold, also improves the
Standard Model vacuum stability due to the RG running. Furthermore, the same
sigma field coupling determines the reheating temperature or the number of
efoldings. Considering the uncertainties in the number of efoldings in the
model, we show that the loop-corrected spectral index and tensor-to-scalar
ratio are consistent with nine-year WMAP and new Planck data within 1sigma.
