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arXiv · 1711.06789

Removing instability of Polonyi-Starobinsky supergravity by adding FI term

Yermek Aldabergenov·Sergei V. Ketov
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Abstract

Polonyi-Starobinsky (PS) supergravity is the N=1 supergravity model of Starobinsky inflation with spontaneous supersymmetry breaking (after inflation) due to Polonyi superfield, and inflaton belonging to a massive vector supermultiplet. The PS model is used for an explicit realization of the (super-heavy) gravitino dark matter scenario in cosmology. We find a potential instability in this model, and offer a mechanism for its removal by adding a Fayet-Iliopoulos (FI) term.

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Yermek Aldabergenov, Sergei V. Ketov. 2018-01-25. Removing instability of Polonyi-Starobinsky supergravity by adding FI term. https://doi.org/10.1142/s0217732318500323

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