An Effective Field Theory Look at Deep Inelastic Scattering

Details An Effective Field Theory Look at Deep Inelastic Scattering An Effective Field Theory Look at Deep Inelastic Scattering

2010-06-16

arxiv.org/abs/1006.3325v1

Mod.Phys.Lett.A25:2039-2049,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 1 figure, To appear in Modern Physics Letters A

Scientific paper

This talk discusses the effective field theory view of deep inelastic scattering. In such an approach, the standard factorization formula of a hard coefficient multiplied by a parton distribution function arises from matching of QCD onto an effective field theory. The DGLAP equations can then be viewed as the standard renormalization group equations that determines the cut-off dependence of the non-local operator whose forward matrix element is the parton distribution function. As an example, the non-singlet quark splitting functions is derived directly from the renormalization properties of the non-local operator itself. This approach, although discussed in the literature, does not appear to be well known to the larger high energy community. In this talk we give a pedagogical introduction to this subject.

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