Angular Inflation from Supergravity

Details Angular Inflation from Supergravity Angular Inflation from Supergravity

2001-11-28

arxiv.org/abs/hep-ph/0111371v2

Mod.Phys.Lett.A17:1627-1634,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, one figure. Final version. Title changed, two figures dropped

Scientific paper

10.1142/S0217732302008022

We study supergravity inflationary models where inflation is produced along the angular direction. For this we express the scalar component of a chiral superfield in terms of the radial and the angular components. We then express the supergravity potential in a form particularly simple for calculations involving polynomial expressions for the superpotential and Kahler potential. We show for a simple Polonyi model the angular direction may give rise to a stage of inflation when the radial field is fixed to its minimum. We obtain analytical expressions for all the relevant inflationary quantities and discuss the possibility of supersymmetry breaking in the radial direction while inflating by the angular component.

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