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Relation of hard and total cross sections to centrality

R. Vogt

nucl-tharXiv:nucl-th/9903051

Abstract

We compare the fractions of the hard and geometric cross sections as a function of impact parameter. For a given definition of central collisions, we calculate the corresponding impact parameter and the fraction of the hard cross section contained within this cut. We use charm quark production as a definite example.

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