Anatomy of the Proton Structure Functions in Κ-factorization
نویسندگان
چکیده
It has become a common wisdom to present a DIS off a proton as if occurring off distinct partons (gluons in small-x domain) in a quantum mechanical probabilistic fashion (the familiar DGLAP approach), which involves the integral flux of gluons with transverse momenta less or equal toQ G(x,Q), whose parameterizations are available to the community. This collinear DGLAP approximation has been suspected for a long time to break in the small-x domain, where the amplitude clearly develops the non-DGLAP features. In this regime one should turn to the original, diagrammatically straightforward relation (the so-called κ-factorization approach):
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