N ov 2 00 1 Charm-Anticharm Asymmetries in Photoproduction from Perturbative Recombination

Abstract

The asymmetries between charm and anticharm mesons observed in fixedtarget photoproduction experiments are an order of magnitude larger than the asymmetries predicted by conventional perturbative QCD. We show that these charm meson asymmetries can be explained by a perturbative recombination mechanism for heavy meson production. In this process, a charm… (More)

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