Is F-term hybrid inflation natural within minimal supersymmetric SO(10)?

Abstract

We examine whether F-term supersymmetric hybrid inflation can be embedded within the minimal SO(10) model, in a natural way. We show that none of the singlets of the Standard Model symmetries in the minimal set of SO(10) representations can satisfy the conditions which are necessary for a scalar field to play the role of the inflaton. As a consequence, one has to introduce an extra scalar field, which however may spoil the naturalness of inflation within the context of SO(10). Nevertheless, if we add an extra scalar field, we are then able to construct a model that can accommodate flat directions while it preserves the stability of the inflationary valley.

16 pages

References in corpus (2)

• On the Onset of Inflation in Loop Quantum Cosmology
• D-term inflation in non-minimal supergravity

Cited by in corpus (5)

• No scale SUGRA SO(10) derived Starobinsky Model of Inflation
• Bosonic condensates in realistic supersymmetric GUT cosmic strings
• Bosonic structure of realistic SO(10) SUSY cosmic strings
• How well do we understand the thermal history of the Universe? Implications of the recent BICEP2 data
• Inflation and cosmic (super)strings: implications of their intimate relation revisited