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Quantum coherence in heavy flavor production on nuclei

The authors describe a light-cone wave-function formalism for hadroproduction of heavy flavors via gluon-gluon fusion. The approach is well suited to address coherence effects in heavy-quark production on nuclei at small x{sub 2}{le}0.1A{sup {minus}1/3}. Nuclear attenuation in hadroproduction of heavy-flavors is found to be similar to shadowing effects for heavy-flavor structure functions in deep inelastic scattering from nuclei. Nevertheless, the remaining differences in the theoretical formulation of both processes imply corrections to the factorization theorems. 28 refs., 1 fig.