Higgs inflation as a mirage

Febrero 10, 2015
De 3:00pm hasta 4:30pm

Video-Conference Room

Specialist level
J. Barbón

Video-Conference Room


Models of Higgs inflation are constructed by a naive UV extrapolation of a very particular effective action. This procedure clashes with standard notions of effective field theory. In particular, the extrapolation must be trusted over a large hierarchy of intermediate scales.
We introduce a simple toy model as a partial UV completion, in which this intermediate hierarchy is generated by a tuning of relevant operators in the UV theory. We further discuss how this model can be used to quantify the accuracy of the extrapolation procedure (or rather the lack of it).