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

2002/09/30 by M. Glück, M. Gl{\"}uck, Cristian Pisano +3 · 2 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1140/epjc/s2002-01124-0

published as Eur.Phys.J.C27:427-432,2003 · Final version, to appear in Eur. Phys. J

arxiv created 2002/12/18 · openalex publication_date 2003/04/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

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.

Cited by

• Manifestly covariant analysis of the QED Compton processin ep→ e γ p and e p → e γ X
• Accessing the longitudinally polarized photon content of the proton