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arXiv · hep-ph/9811412

Observable Isocurvature Fluctuations from the Affleck-Dine Condensate

Kari Enqvist·John McDonald
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Abstract

In D-term inflation models, Affleck-Dine baryogenesis produces isocurvature density fluctuations. These can be perturbations in the baryon number, or, in the case where the present neutralino density comes directly from B-ball decay, perturbations in the number of dark matter neutralinos. The latter case results in a large enhancement of the isocurvature perturbation. The requirement that the deviation of the adiabatic perturbations from scale invariance due to the Affleck-Dine field is not too large then imposes a lower bound on the magnitude of the isocurvature fluctuation of about $10^{-2}$ times the adiabatic perturbation. This should be observable by MAP and PLANCK.

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Kari Enqvist, John McDonald. 1998-11-19. Observable Isocurvature Fluctuations from the Affleck-Dine Condensate. https://doi.org/10.1103/physrevlett.83.2510

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