Charged current deep-inelastic scattering at three loops

We derive for deep-inelastic neutrino(ν)-proton(P) scattering in the combination νP−ν¯P the perturbative QCD corrections to three loops for the charged current structure functions F2, FL and F3. In leading twist approximation we calculate the first five odd-integer Mellin moments in the case of F2 and FL and the first five even-integer moments in the case of F3. As a new result we obtain the coefficient functions to O(αs3) while the corresponding anomalous dimensions agree with known results in the literature.