244 citations · 748 across the 14 of their papers we have counts for
5 papers · 1 filter
Unitarity-violation in Generalized Higgs Inflation Models
Rose N. Lerner, John McDonald
Unitarity-violation presents a challenge for non-minimally coupled models of inflation based on weak-scale particle physics. We examine the energy scale of tree-level unitarity-vio…
Distinguishing Higgs inflation and its variants
Rose N. Lerner, John McDonald
We consider how Higgs Inflation can be observationally distinguished from variants based on gauge singlet scalar extensions of the Standard Model, in particular where the inflaton…
A Unitarity-Conserving Higgs Inflation Model
Rose N. Lerner, John McDonald
Scalar field models of inflation based on a large nonminimal coupling to gravity xi, in particular, Higgs inflation, may violate unitarity at an energy scale ~ M_p / xi << M_p. In…
Higgs Inflation and Naturalness
Rose N. Lerner, John McDonald
Inflation based on scalar fields which are non-minimally coupled to gravity has been proposed as a way to unify inflation with weak-scale physics, with the inflaton being identifie…
Gauge singlet scalar as inflaton and thermal relic dark matter
Rose N. Lerner, John McDonald
We show that, by adding a gauge singlet scalar S to the standard model which is nonminimally coupled to gravity, S can act both as the inflaton and as thermal relic dark matter. We…