Exclusive pi^+ production at HERMES
High Energy Physics - Experiment
2019-08-14 v1
Abstract
Hard exclusive production in deep inelastic lepton scattering provides access to the unknown Generalized Parton Distributions (GPDs) of the nucleon. At HERMES, different observables for hard exclusive pi^+ production have been measured with a 27.6 GeV positron beam on an internal hydrogen gas target. First preliminary results for the unpolarized ep->enpi^+ total cross section for 1.5<Q^2<10.5 GeV^2 and for 0.02<x<0.8 are presented and compared to GPD calculations. The final result for the single-spin asymmetry using a longitudinal polarized target is also reported.
Cite
@article{arxiv.hep-ex/0405078,
title = {Exclusive pi^+ production at HERMES},
author = {C. Hadjidakis and D. Hasch and E. Thomas},
journal= {arXiv preprint arXiv:hep-ex/0405078},
year = {2019}
}
Comments
5 pages, 3 figures, contribution to the XII International Workshop on Deep Inelastic Scattering, April 14-18, 2004, Strbske Pleso, Slovakia