Is binary sequential decay compatible with the fragmentation of nuclei at high energy?

Abstract

We use a binary sequential decay model in order to describe the fragmentation of a nucleus induced by the high energy collisions of protons with Au nuclei. Overall agreement between measured and calculated physical observables is obtained. We evaluate and analyse the decay times obtained with two different parametrisations of the decay rates and discuss the applicability of the model to high energy fragmentation.

6 pages, 4 eps figures. Small changes at the end of the text. More arguments are given in the discussion of the time scale of the process

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