Multifield dynamics of supersymmetric Higgs inflation in SU(5) GUT

Abstract

We study the Higgs inflation model realized in the supersymmetric SU(5) grand unified theory (GUT), focusing on its multifield dynamics and prediction of cosmological observables. The requirement for GUT symmetry breaking during inflation imposes tight constraints on the model parameters. We find, nevertheless, with an appropriately chosen noncanonical Kahler potential the model is in excellent agreement with the present cosmological observation. The effects from multifield dynamics is found to be minor and thus, unlike other similar supersymmetric implementation of nonminimally coupled Higgs inflation, the prediction of this model is robust against multifield ambiguities.

16 pages, revtex4.1, 8 figures

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• Gravitational Waves, mu Term & Leptogenesis from B-L Higgs Inflation in Supergravity
• Sneutrino driven GUT Inflation in Supergravity
• Transitions between topologically non-trivial configurations
• Non-Gaussianity in rapid-turn multi-field inflation
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• Gravitino constraints on supergravity inflation
• Messenger inflation in gauge mediation and superWIMP dark matter
• Chaotic initial conditions for nonminimally coupled inflation via a conformal factor with a zero
• Inflation and type III seesaw mechanism in $\nu$-gauge mediated supersymmetry breaking