On higher order corrections to photon structure functions
Abstract
Description
The QCD corrections to photon structure functions are defined in a way consistent with the factorization scheme invariance. It is shown that the conventional DIS$_γ$ factorization scheme does not respect this invariance and is thus deeply flawed. The origins of the divergent behavior of photonic coefficient function at large $x$ are analyzed and recipe to remove it is suggested.
14 pages, 2 eps figures, couple of typos and misprints corrected
14 pages, 2 eps figures, couple of typos and misprints corrected