Reactions of QCD plasma droplets in hot mixed-phase matter

We introduce a droplet model to survey the interactions and reactions of blobs of QCD plasma in a mixed phase with low-density hadronic gas. We extend earlier work on the statistical mechanism of pionic emission by the droplets to include the fission of a large droplet into two smaller ones, and give quantitative estimates for the fission rate. We also consider the collisions of plasma droplets. By extending the proximity model to the case when the droplets are composed of relativistic particles, we show that collisions almost always lead to fusion of the plasma droplets, and give a simple estimate of the conditions necessary for fusion.