Abstract

In the framework of the relativistic quantum molecular dynamics approach (RQMD) we investigate antideuteron ( d ) observables in Au+Au collisions at 10.7 AGeV. The impact parameter dependence of the formation rates d p 2 and d p 2 is calculated. In central collisions, the antideuteron formation rate is predicted to be two orders of magnitude lower than the deuteron formation rate. The d yield in central Au+Au collisions is one order of magnitude lower than in Si+Al collisions. In semicentral collisions different configuration space distributions of p' s and d' s lead to a large “squeeze-out” effect for antideuterons, which is not predicted for the p' s .

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