Heavy flavor production off protons and in a nuclear environment

Abstract

These lectures present an overview of the current status of the QCD based phenomenology for open and hidden heavy flavor production at high energies. A unified description based on the light-cone color-dipole approach is employed in all cases. A good agreement with available data is achieved without fitting to the data to be explained, and nontrivial predictions for future experiments are made. The key phenomena under discussion are: (i) formation of the wave function of a heavy quarkonium; (ii) quantum interference and coherence length effects; (iii) Landau-Pomeranchuk suppression of gluon radiation leading to gluon shadowing and nuclear suppression of heavy flavors; (iv) higher twist shadowing related to the finite size of heavy quark dipoles; (v) higher twist corrections to the leading twist gluon shadowing making it process dependent.

62 pages, 22 figures, based on lectures given by B. Kopeliovich at the International School "Heavy Quark Physics", Dubna, May 27 - June 5, 2002

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