Massive charged-current coefficient functions in deep-inelastic scattering at NNLO and impact on strange-quark distributions

Understand

We present details on calculation of next-to-next-to-leading order QCD corrections to massive charged-current coefficient functions in deep-inelastic scattering.

• Especially we focus on the application to charm-quark production in neutrino scattering on fixed target that can be measured via the dimuon final state.
• We construct a fast interface to the calculation so for any parton distributions the cross sections can be evaluated within milliseconds by using the pre-generated interpolation grids.
• We discuss agreements of various theoretical predicitons with the NuTeV and CCFR dimuon data and the impact of the results on determination of the strange-quark distributions.