$O(α_s^2)$ corrections to polarized heavy flavour production at $Q^2\gg m^2$

M. Buza; Y. Matiounine; J. Smith; W. L. van Neerven

Paper

$O(α_s^2)$ corrections to polarized heavy flavour production at $Q^2\gg m^2$

Abstract

We present analytic formulae for the heavy flavour coefficient functions for polarized deep inelastic lepton-hadron scattering. The expressions are valid in the kinematical regime

where

and

stand for the masses squared of the virtual photon and heavy quark respectively. Using these coefficient functions we have computed the next-to-leading order

corrections to polarized charm production at HERA collider energies, where both the electron and proton beams are polarized. We also give an estimate of these corrections at fixed target experiments where the typical

values are much smaller than at HERA.