Minimal but non-minimal inflation and electroweak symmetry breaking
نویسندگان
چکیده
We consider the most minimal scale invariant extension of the standard model that allows for successful radiative electroweak symmetry breaking and inflation. The framework involves an extra scalar singlet, that plays the rôle of the inflaton, and is compatibile with current experimental bounds owing to the non-minimal coupling of the latter to gravity. This inflationary scenario predicts a very low tensor-to-scalar ratio r ≈ 10−3, typical of Higgs-inflation models, but in contrast yields a scalar spectral index ns ' 0.97 which departs from the Starobinsky limit. We briefly discuss the collider phenomenology of the framework.
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