6533b850fe1ef96bd12a857e
RESEARCH PRODUCT
Pion production in deeply virtual Compton scattering
P. GuichonM. VanderhaeghenL. Mossésubject
PhysicsNuclear and High Energy PhysicsParticle physicsChiral symmetryHigh Energy Physics::PhenomenologyCompton scatteringFOS: Physical sciencesObservablePartonResonance (particle physics)Nuclear physicsHigh Energy Physics - PhenomenologyPionHigh Energy Physics - Phenomenology (hep-ph)BibliographyProduction (computer science)High Energy Physics::ExperimentNuclear Experimentdescription
Using a soft pion theorem based on chiral symmetry and a $\Delta(1232)$ resonance model we propose an estimate for the production cross section of low energy pions in the deeply virtual Compton scattering (DVCS) process. In particular, we express the $e p \to e \gamma \pi N$ processes in terms of generalized parton distributions. We provide estimates of the contamination of the $e p \to e \gamma p$ DVCS observables due to this associated pion production processes when the experimental data are not fully exclusive, for a set of kinematical conditions representative of present or planned experiments at JLab, HERMES and COMPASS.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-05-21 |