Observable isocurvature fluctuations from the Affleck-Dine condensate

Enqvist, Kari and McDonald, John (1999) Observable isocurvature fluctuations from the Affleck-Dine condensate. Physical review letters, 83 (13). pp. 2510-2513. ISSN 0031-9007

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Abstract

In D-term inflation models, Affleck-Dine baryogenesis produces baryonic isocurvature fluctuations. In most cases the Affleck-Dine condensate is unstable with respect to collapse to B-balls, which can transform the baryon number perturbations into perturbations in the number of dark matter neutralinos. The requirement that the deviation of the adiabatic perturbations from scale invariance is not too large imposes a lower bound on the magnitude of the isocurvature fluctuations. In general this is larger than about 10(-4) times the adiabatic perturbation, and, for the particular case of late decaying B-balls, larger than about 10(-2) times the adiabatic perturbation, which should be observable by MAP and PLANCK.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
83237
Deposited By:
Deposited On:
29 Nov 2016 09:42
Refereed?:
Yes
Published?:
Published
Last Modified:
19 Aug 2020 03:28