Published February 1, 2008 | Version v1
Journal article

R-invariant new inflation model versus supersymmetric standard model

  • 1. Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309 (United States) and Physics Department, Stanford University, Stanford, California 94305 (United States)
  • 2. Department of Physics, University of Tokyo, Tokyo 113-0033 (Japan)

Description

We revisit the implications of the R-invariant new inflation model to the supersymmetric standard model in light of recent discussion of gravitino production processes by the decay of the inflaton and the supersymmetry breaking field. We show that the models with supergravity mediation do not work well together with the R-invariant new inflation model, where the gravitino abundance produced by the decay of the inflaton and the supersymmetry breaking field significantly exceeds the bounds from cosmological observations without fine-tuning. We also show that the models with gauge mediation can go together with the R-invariant new inflation model, where the dark matter abundance and the baryon asymmetry of the universe are consistently explained without severe fine-tuning

Additional details

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
77
Journal Issue
3
Journal Page Range
p. 035009-035009.8
ISSN
0556-2821
CODEN
PRVDAQ

Optional Information

Notes
(c) 2008 The American Physical Society