Illustrating SUSY breaking effects on various inflation mechanisms

Abstract

We consider the supersymmetry breaking effects on typical inflation models with different types of Kähler potential. The critical size of supersymmetry-breaking scale, above which the flatness of the inflaton potential is spoiled, drastically changes model by model. We present the universal description of such effects in terms of a field-dependent scaling factor by which gravity-mediated supersymmetry breaking terms are suppressed or enhanced, based on the conformal supergravity framework. Such a description would be useful when we estimate them in constructing supersymmetric models of particle cosmology.

arXiv comment20pages, 3 figures, v2: a reference added, v3: Appendix B added

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• Non-slow-roll dynamics in $\alpha -$attractors
• SUSY breaking after inflation in supergravity with inflaton in a massive vector multiplet
• Trans-Planckian censorship and single-field inflaton potential
• On inflation, cosmological constant, and SUSY breaking
• Inflation in supergravity without Kahler potential
• Dissipative Emergence of Inflation from Quasi-Cyclic Universe