Removing instability of inflation in Polonyi-Starobinsky supergravity by adding FI term

Yermek Aldabergenov, Sergei V. Ketov

Research output: Contribution to journalArticle

25 Citations (Scopus)

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.

Original languageEnglish
Article number1850032
JournalModern Physics Letters A
Volume33
Issue number5
DOIs
Publication statusPublished - 20 Feb 2018

Keywords

  • Inflation
  • supergravity
  • SUSY breaking

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics

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