Mellin representations for the heavy flavor contributions to deep inelastic structure functions

We derive semi-analytic expressions for the analytic continuation of the mellin transforms of the heavy flavor QCD coefficient functions for neutral current deep inelastic scattering in leading and next-to-leading order to complex values of the Mellin variable N. These representations are used in Mellin-space QCD evolution programs to provide fast evaluations of the heavy flavor contributions to the structure functions F_2(x, Q"2), F_L(x, Q"2) and g_1(x, Q"2). (orig.)SIGLEAvailable from TIB Hannover: RA 8919(03-204) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman