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arXiv · 1411.5537

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

John Ellis·Hong-Jian He·Zhong-Zhi Xianyu
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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 $n_s \sim 0.96$.

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John Ellis, Hong-Jian He, Zhong-Zhi Xianyu. 2014-12-23. New Higgs Inflation in a No-Scale Supersymmetric SU(5) GUT. https://doi.org/10.1103/physrevd.91.021302

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