We propose a novel framework in which the observed baryon and dark matter abundances are simultaneously generated via the Affleck-Dine mechanism .
In its simplest realization , Affleck-Dine cogenesis is accomplished by a single superpotential operator and its A -term counterpart .
These operators explicitly break B - L and X , the dark matter number , to the diagonal B - L + X .
In the early universe these operators stabilize supersymmetric flat directions carrying non-zero B - L and X , and impart the requisite CP violation for asymmetry generation .
Because B - L + X is preserved , the resulting B - L and X asymmetries are equal and opposite , though this precise relation may be relaxed if B - L and X are violated separately by additional operators .
Our dark matter candidate is stabilized by R -parity and acquires an asymmetric abundance due to its non-zero X number .
For a dark matter mass of order a few GeV , one naturally obtains the observed ratio of energy densities today , \Omega _ { DM } / \Omega _ { B } \sim 5 .
These theories typically predict macroscopic lifetimes for the lightest observable supersymmetric particle as it decays to the dark matter .