On the Thermal Regeneration Rate for Light Gravitinos in the Early Universe

Abstract

We investigate the light gravitino regeneration rate in the early Universe in models based on $N=1$ supergravity. Motivated by a recent claim by Fischler, we evaluate finite-temperature effects on the gravitino regeneration rate due to the hot primordial plasma for a wide range of the supersymmetry-breaking scale $F$. We find that thermal corrections to the gravitino pole mass and to the Goldstino coupling are negligible for a wide range of temperatures, thereby justifying the extension of the equivalence theorem for the helicity-1/2 gravitino and Goldstino to a hot primordial plasma background. Utilizing the Braaten-Pisarski resummation method, the helicity-1/2 gravitino regeneration rate is found to be $0.25{\alpha }_s(T)\log (1/{\alpha }_s(T))|m_{\mathrm{soft}}/F{|}^2{T}^3(1+{\alpha }_s(T)\log (1/{\alpha }_s(T))+T^2/|F|)$ up to a calculable, model-dependent $\mathcal{O}(1)$ numerical factor. We review the implications of this regeneration rate for supergravity cosmology, focusing in particular on scenaria for baryogenesis.

REVTEX 32 pages, two encapsulated ps figure files

References in corpus (8)

• Reheating after Inflation
• Damping rates for moving particles in hot QCD
• Inflation, Neutrino Baryogenesis, and (S)Neutrino-Induced Baryogenesis
• On the Solution to the Polonyi Problem with $O$(10~TeV) Gravitino Mass in Supergravity
• Solution to the Perturbative Infrared Catastrophe of Hot Gauge Theories
• Parton Interaction Rates in the Quark-Gluon Plasma
• Flipped Heavy Neutrinos from the Solar Neutrino Problem to Baryogenesis
• Gravitinos and a Low Ultimate Temperature for the Early Universe

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