A New Inflation Model with Anomaly-mediated Supersymmetry Breaking

Abstract

If there are a large number of vacua, multi-inflation may be a more mediocre phenomenon rather than a single inflation. In the multi-inflation scenario, new inflation is most likely the last inflation, since its energy scale is naturally low. Furthermore, it may explain the observed spectral index of the cosmic microwave background radiations. We show, in this letter, that a new inflation model proposed in supergravity accounts for all the present observations assuming anomaly mediation of supersymmetry breaking. As a result, we find that the relic density of the winos is consistent with the observed dark matter density in a wide range of the wino mass, 100 GeV lsim m_{tilde{w}} lsim 2 TeV, albeit for a low reheating temperature T_{R} simeq 10^{6-7},GeV.

arXiv comment14 pages, 4 figures, the title is corrected

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Cited by in corpus (7)

• Possible Signals of Wino LSP at the Large Hadron Collider
• The Peccei-Quinn Symmetry from a Gauged Discrete R Symmetry
• Test of Anomaly Mediation at the LHC
• R-violating Decay of Wino Dark Matter and electron/positron Excesses in the PAMELA/Fermi Experiments
• Lower Bound on the Garvitino Mass $m_{3/2}>O(100)$ TeV in $R$-Symmetry Breaking New Inflation
• Heavy gravitino in hybrid inflation
• R-invariant New Inflation Model vs Supersymmetric Standard Model