TY - JOUR

T1 - Observable isocurvature fluctuations from the Affleck-Dine condensate

AU - Enqvist, Kari

AU - McDonald, John

PY - 1999/9/27

Y1 - 1999/9/27

N2 - 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.

AB - 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.

KW - D-TERM INFLATION

KW - Q-BALLS

KW - BARYOGENESIS

KW - MSSM

U2 - 10.1103/PhysRevLett.83.2510

DO - 10.1103/PhysRevLett.83.2510

M3 - Journal article

VL - 83

SP - 2510

EP - 2513

JO - Physical review letters

JF - Physical review letters

SN - 0031-9007

IS - 13

ER -