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Diquark cascade and meson production in diquark-deuteron fragmentation.

A diquark cascade model of meson production in the fragmentation region of the diquark deu- teron is proposed. The meson spectra obtained in this model show that, in general, the cross sections are large compared to those occurring in fragmentation of the normal deuteron. It is also shown that the available deuteron data are consistent with the presence of quark clusters in the normal deuteron.