New Higgs Inflation in a No-Scale Supersymmetric SU(5) GUT

Abstract

Higgs inflation is attractive because it identifies the inflaton with the electroweak Higgs boson. In this work, we construct a new class of supersymmetric Higgs inflationary models in the no-scale supergravity with an SU(5) GUT group. Extending the no-scale Kahler potential and SU(5) GUT superpotential, we derive a generic potential for Higgs inflation that includes the quadratic monomial potential and a Starobinsky-type potential as special limits. This type of models can accommodate a wide range of the tensor-to-scalar ratio $r=O(10^{-3}-10^{-1})$, as well as a scalar spectral index $n_s\sim 0.96$.

PRD-Rapid Communication, final version, 6pp, only minor rewordings and Refs added

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Cited by in corpus (4)

• GUT Physics in the era of the LHC
• Starobinsky-Like Inflation and Neutrino Masses in a No-Scale SO(10) Model
• Power law Starobinsky model of inflation from no-scale SUGRA
• Strong Dynamics and Inflation: a review