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HERMES Measurements of Hard-Exclusive Processes

Authors
Journal
Nuclear Physics B - Proceedings Supplements
0920-5632
Publisher
Elsevier
Publication Date
Volume
184
Identifiers
DOI: 10.1016/j.nuclphysbps.2008.09.170

Abstract

Three HERMES measurements of hard-exclusive processes usefull for testing Generalized Parton Distributions (GPDs) are described. Firstly, Spin Density Matrix Elements (SDMEs) are determined from exclusive diffractive ρ 0 and ϕ electroproduction in the HERMES experiment at 27.5 GeV beam energy. Then, Transverse Target Spin Asymmetry (TTSA) in exclusive ρ 0 production and in Deeply Virtual Compton Scattering (DVCS) process on a transversally polarized hydrogen target is determined.

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