The Mellin moments of deep inelastic structure functions at two loops

Abstract

We perform the analytic calculation of the Mellin moments of the structure functions F_2 and F_L in perturbative QCD up to second order corrections and in leading twist approximation. We calculate the 2-loop contributions to the anomalous dimensions of the singlet and non-singlet operator matrix elements and the 2-loop coefficient functions of F_2 and F_L. Our results are in agreement with earlier calculations in the literature.

Comments: 4 pages LaTeX, talk given at the QCD 99 Euroconference, Montpellier (France)