6533b85dfe1ef96bd12be820
RESEARCH PRODUCT
Quark effects, meson-exchange currents and background in the d(e,e'p)delta reaction
E. OsetJ.a.gómez Tejedorsubject
PhysicsQuarkNuclear and High Energy PhysicsParticle physicsMesonHigh Energy Physics::LatticeHigh Energy Physics::PhenomenologyNuclear TheoryFísicaNuclear physicsCross section (physics)DeuteriumCIENCIA DE LOS MATERIALES E INGENIERIA METALURGICAHigh Energy Physics::ExperimentDeuteronNucleonOrder of magnitudeExcitationModeldescription
[EN] We have studied in detail the cross section for the d(e, e'p)Delta reaction leading to the emission of a fast nucleon and a Delta at rest, which has been advocated as a tool to investigate quark effects in nuclei. We find that ordinary meson-exchange currents mechanisms dominate the quark-exchange effects in the region of excitation of the Delta and could be competitive at higher energies. Furthermore, at these higher energies, the small cross sections for the quark signal, together with the presence of a background about one order of magnitude bigger than the quark signal, make in any case the extraction of information about quark-exchange currents effects extraordinarily difficult.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-01-01 |