Relations among QCD corrections beyond leading order

Abstract

The status of various relations among higher order QCD corrections is discussed. In particular, Drell-Levy-Yan relation and Supersymmetric relation are studied at the two-loop level. We have also investigated the validity of such relations for physical observables.

3 pages, LaTeX. Contributed to 3rd UK Phenomenology Workshop on HERA Physics, Durham, England, 20-25 Sep 1998

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