1997/05/09 by Zhang Chen
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1016/s0550-3213(98)00226-0
published as Nucl.Phys. B525 (1998) 369-383 · 11 pages, RevTex, 3 figures
arxiv created 1997/05/09 · openalex publication_date 1998/08/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01
We discuss the general operator product expansion of a non-forward unequal mass virtual Compton scattering amplitude. We find that the expansion now should be done in double moments with new moment variables. There are in the expansion new sets of leading twist operators which have overall derivatives, and they mix under renormalization. We compute the evolution kernels from which the anomalous dimensions for these operators can be extracted. We also obtain the lowest order Wilson coefficients. In the high-energy limit we find the explicit form of the dominant contributing anomalous dimensions and solve the resulting renormalization group equation. We find the same high-energy behavior as indicated by the conventional double leading logarithmic analysis.