Fully differential heavy quark contributions to the photon structure functions $F_{2}^γ(x,Q^2)$ and $F_{L}^γ(x,Q^2)$ at next-to-leading order QCD

Abstract

Fully differential heavy quark contributions to the photon structure functions in deeply inelastic scattering are computed in next-to-leading order QCD, including both the direct and resolved contributions. A variety of distributions are presented and discussed. Several of the distributions show marked differences between the resolved and direct cases due primarily to the presense of the gluon distribution in the former and lack thereof in the later.