%0 Journal Article %T Deuteron Formation in Heavy Ion Collisions within the Faddeev Approach %A M. Beyer %A C. Kuhrts %A G. Roepke %A P. D. Danielewicz %J Physics %D 1999 %I arXiv %X We address the formation of correlations in a general nonequilibrium situation. As an example we calculate the formation of light composite particles in a heavy ion collision. In particular we study the formation of deuterons via three-body reactions in some detail. To calculate the relevant reaction rates we solve the Faddeev equation which is consistently modified to include the self energy corrections and Pauli blocking factors due to surrounding nucleons. We find that the time scales of the reaction as well as the number of emitted deuterons change as medium dependent rates are used in the calculation. %U http://arxiv.org/abs/nucl-th/9910058v1