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A geometric bound on F-term inflation

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Abstract

We discuss a general bound on the possibility to realise inflation in any minimal supergravity with F-terms. The derivation crucially depends on the sGoldstini, the scalar field directions that are singled out by spontaneous supersymmetry breaking. The resulting bound involves both slow-roll parameters and the geometry of the Kähler manifold of the chiral scalars. We analyse the inflationary implications of this bound, and in particular discuss to what extent the requirements of single field and slow-roll can both be met in F-term inflation.

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Authors and Affiliations

  1. Centre for Theoretical Physics, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands

    Andrea Borghese, Diederik Roest & Ivonne Zavala

Authors
  1. Andrea Borghese
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  2. Diederik Roest
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  3. Ivonne Zavala
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Correspondence to Andrea Borghese.

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ArXiv ePrint: 1203.2909

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Borghese, A., Roest, D. & Zavala, I. A geometric bound on F-term inflation. J. High Energ. Phys. 2012, 21 (2012). https://doi.org/10.1007/JHEP09(2012)021

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  • DOI: https://doi.org/10.1007/JHEP09(2012)021

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