Abstract

A phenomenological study of fragmentation of beam nuclei in the Bevatron energy region is made based on the diffractive excitation model. Two body dissociation and fragmentation are assumed. It is shown that because of the slight energy transfer between colliding nuclei, the interfragment binding energy of the beam nucleus plays an important role in the fragmentation even in the high energy region and that the main features of relative partial cross sections and momentum distribution widths of fragments can be understood with the diffractive excitation model. Some implications of our results for the cluster structure of the beam nuclei are discussed.NUCLEAR REACTIONS Analysis of data on the partial cross sections and momentum width distributions of fragments from $^{16}\mathrm{O}$ and $^{12}\mathrm{C}$ at 2.1 and 1.05 GeV/N, diffractive excitation model.

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