BARYOGENESIS FROM BLACK-HOLE EVAPORATION

The possibility of baryogenesis through the evaporation of black holes formed during extended inflation is explored. These black holes are p roduced due to the collapse of trapped regions of false vacuum during the inflationary phase transition. Immediately after formation, the ac cretion of mass from the surrounding hot radiation bath in the univers e is shown to be an important effect. This causes the lifetime of the black holes to be considerably elongated before they evaporate out thr ough the process of Hawking radiation. It is shown that a sufficient n umber of black holes last up to well past the electroweak era and henc e contribute to the surviving baryon asymmetry in the universe.