Heavy Quarks and Structure Functions
Abstract
I present a method for calculating heavy quark production which extrapolates smoothly from the well understood limits of the fixed-flavour number scheme for Q2 approx mH2 to the zero-mass scheme at Q2/mH2 -> infinity. For all Q2 > mH2 the evolution of the heavy quark distribution is precisely as in the massless MSbar scheme. The method is simple to implement and compares well with data.
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