Paper
Charm-quark production in deep-inelastic neutrino scattering at NNLO in QCD
Authors
Edmond L. Berger, Jun Gao, Chong Sheng Li, Ze Long Liu, Hua Xing Zhu
Abstract
We present a fully differential next-to-next-to-leading order calculation of charm quark production in charged-current deep-inelastic scattering, with full charm-quark mass dependence. The next-to-next-to-leading order corrections in perturbative quantum chromodynamics are found to be comparable in size to the next-to-leading order corrections in certain kinematic regions. We compare our predictions with data on dimuon production in (anti-)neutrino scattering from a heavy nucleus. Our results can be used to improve the extraction of the parton distribution function of a strange quark in the nucleon.