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Shaft inflation

Research output: Contribution to journalJournal article

Published
<mark>Journal publication date</mark>30/07/2014
<mark>Journal</mark>Physics Letters B
Volume735
Number of pages4
Pages (from-to)75-78
Publication StatusPublished
<mark>Original language</mark>English

Abstract

A new family of inflation models is introduced and studied. The models are characterised by a scalar potential which, far from the origin, approximates an inflationary plateau, while near the origin becomes monomial, as in chaotic inflation. The models are obtained in the context of global supersymmetry starting with a superpotential, which interpolates from a generalised monomial to an O'Raifearteagh form for small to large values of the inflaton field respectively. It is demonstrated that the observables obtained, such as the scalar spectral index and the tensor to scalar ratio, are in excellent agreement with the latest observations. Some discussion of initial conditions and eternal inflation is included.

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Open Access funded by SCOAP³ - Sponsoring Consortium for Open Access Publishing in Particle Physics Under a Creative Commons license