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arXiv · 1606.02202

Higgs Inflation, Reheating and Gravitino Production in No-Scale Supersymmetric GUTs

John Ellis·Hong-Jian He·Zhong-Zhi Xianyu
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Abstract

We extend our previous study of supersymmetric Higgs inflation in the context of no-scale supergravity and grand unification, to include models based on the flipped SU(5) and the Pati-Salam group. Like the previous SU(5) GUT model, these yield a class of inflation models whose inflation predictions interpolate between those of the quadratic chaotic inflation and Starobinsky-like inflation, while avoiding tension with proton decay limits. We further analyse the reheating process in these models, and derive the number of e-folds, which is independent of the reheating temperature. We derive the corresponding predictions for the scalar tilt and the tensor-to-scalar ratio in cosmic microwave background perturbations, as well as discussing the gravitino production following inflation.

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John Ellis, Hong-Jian He, Zhong-Zhi Xianyu. 2016-08-18. Higgs Inflation, Reheating and Gravitino Production in No-Scale Supersymmetric GUTs. https://doi.org/10.1088/1475-7516%2F2016%2F08%2F068

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