"Higgs-inflaton coupling from reheating and the metastable Universe"

abstract:
Current Higgs boson and top quark data favor metastability of our vacuum
which raises questions as to why the Universe has chosen an
energetically disfavored state and remained there during inflation. In
this talk, I will point out that these problems can be solved by a
Higgs-inflaton coupling which appears in realistic models of inflation.
Since an inflaton must couple to the Standard Model particles either
directly or indirectly, such a coupling is generated radiatively, even
if absent at tree level. As a result, the dynamics of the Higgs field
can change dramatically.