(\mu\)-Hybrid Inflation with Low Reheat Temperature and Observable Gravity Waves

In \(\mu\)-hybrid inflation a nonzero inflaton vacuum expectation value induced by supersymmetry breaking is proportional to the gravitino mass \(m_{3/2}\), which can be exploited to resolve the minimal supersymmetric standard model \(\mu\) problem. We show how this scenario can be successfully impl...

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Bibliographic Details
Published in:arXiv.org 2017-10
Main Authors: Mansoor Ur Rehman, Shafi, Qaisar, Vardag, Fariha K
Format: Article
Language:English
Subjects:
Gravitational waves
Gravity waves
Supersymmetry
Tensors
Online Access:Get full text
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Summary:In \(\mu\)-hybrid inflation a nonzero inflaton vacuum expectation value induced by supersymmetry breaking is proportional to the gravitino mass \(m_{3/2}\), which can be exploited to resolve the minimal supersymmetric standard model \(\mu\) problem. We show how this scenario can be successfully implemented with \(m_{3/2} \sim 1-100\) TeV and reheat temperature as low as \(10^6\) GeV by employing a minimal renormalizable superpotential coupled with a well defined non-minimal K\"ahler potential. The tensor-to-scalar ratio \(r\), a canonical measure of primordial gravity waves in most cases is less than or of the order of \(10^{-6}-10^{-3}\).
ISSN:2331-8422
DOI:10.48550/arxiv.1705.03693