Abstract
It is suggested that monopole-antimonopole pair production initiated by pointlike particles (electrons, quarks) has widely different cross sections in the two cases of ''pointlike'' and composite monopoles, respectively. Production of 't Hooft--Polyakov monopoles is expected to be suppressed by a hugh factor, > or =10/sup 30/. Furthermore, astrophysical evidence is presented suggesting that monopoles with m/sub m/roughly-equal10/sup 4/ GeV/c/sup 2/ cannot be pointlike.
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