6533b85bfe1ef96bd12ba28e
RESEARCH PRODUCT
Photo- and electroproduction of eta mesons
G. KnöchleinDieter DrechselL. Tiatorsubject
PhysicsNuclear and High Energy PhysicsParticle physicsNuclear TheoryMesonNuclear TheoryStructure functionDegrees of freedom (physics and chemistry)FOS: Physical sciencesResonancePolarization (waves)CoincidenceNuclear Theory (nucl-th)Vector mesonNuclear ExperimentNucleondescription
Eta photo- and electroproduction off the nucleon is investigated in an effective lagrangian approach that contains Born terms and both vector meson and nucleon resonance contributions. In particular, we review and develop the formalism for coincidence experiments with polarization degrees of freedom. The different response functions appearing in single and double polarization experiments have been studied. We will present calculations for structure functions and kinematical conditions that are most sensitive to details of the lagrangian, in particular with regard to contributions of nucleon resonances beyond the dominant $S_{11}$(1535) resonance.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-06-29 | Zeitschrift f�r Physik A Hadrons and Nuclei |