Delineating the polarized and unpolarized photon distributions of the nucleon in eN collisions

Details Delineating the polarized and unpolarized photon distributions of the nucleon in eN collisions Delineating the polarized and unpolarized photon distributions of the nucleon in eN collisions

2002-09-27

arxiv.org/abs/hep-ph/0209335v2

Eur.Phys.J.C27:427-432,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

Final version, to appear in Eur. Phys. J

Scientific paper

10.1140/epjc/s2002-01124-0

The production rates of lepton-photon and dimuon pairs at the HERA collider and the HERMES experiment are evaluated in the leading order equivalent photon approximation. It is shown that the production rates are sufficient to facilitate the extraction of the polarized and unpolarized equivalent photon distributions of the proton and neutron in the available kinematical regions. It is pointed out that these results indicate the possibility of additional, independent, tests concerning the unpolarized and polarized structure functions F_{1,2}^N and g_{1,2}^N, respectively, of the nucleon.

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