Parton Distributions in the Virtual Photon Target and Factorization Scheme Dependence

Details Parton Distributions in the Virtual Photon Target and Factorization Scheme Dependence Parton Distributions in the Virtual Photon Target and Factorization Scheme Dependence

2000-06-02

arxiv.org/abs/hep-ph/0006025v1

Nucl.Phys.Proc.Suppl. 89 (2000) 162-167

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, LaTeX, 3 ps figures, uses npb.sty, Contribution to the Zeuthen Workshop on Elementary Particle Theory: Loops and Legs

Scientific paper

10.1016/S0920-5632(00)00839-2

We investigate parton distributions in the virtual photon target, both polarized and unpolarized, up to the next-leading order (NLO) in QCD. Parton distributions can be predicted completely up to NLO, but they are factorization-scheme-dependent. We analyze parton distributions in several factorization schemes and discuss their scheme dependence. Particular attentions are paid to the axial anomaly effect on the first moments of the polarized quark parton distributions, and also to the large-$x$ behaviors of polarized and unpolarized parton distributions.

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