Higgs ξ-inflation for the 125-126 GeV Higgs: a two-loop analysis
Higgs ξ-inflation for the 125-126 GeV Higgs: a two-loop analysis
A non-minimal coupling ξ of the Standard Model Higgs field to gravity can give rise to inflation, but large ξ is required and thus leads to a violation of perturbative unitarity at M Pl/ξ, which is well below the inflationary scale $ {{{{M_{\mathrm{Pl}}}}} \left/ {{\sqrt{\xi }}} \right.} $ . We …