6533b82bfe1ef96bd128cdfc
RESEARCH PRODUCT
Parity violating pion electroproduction off the nucleon
Hans-werner HammerDieter Drechselsubject
PhysicsNuclear and High Energy PhysicsParticle physicsNuclear Theorymedia_common.quotation_subjectNuclear TheoryFOS: Physical sciencesParity (physics)AsymmetryNuclear Theory (nucl-th)High Energy Physics - Phenomenologysymbols.namesakeHigh Energy Physics - Phenomenology (hep-ph)PionPhenomenological modelsymbolsNuclear fusionHigh Energy Physics::ExperimentNucleonNuclear theoryLagrangianmedia_commondescription
Parity violating (PV) contributions due to interference between $\gamma$ and $Z^0$ exchange are calculated for pion electroproduction off the nucleon. A phenomenological model with effective Lagrangians is used to determine the resulting asymmetry for the energy region between threshold and $\Delta(1232)$ resonance. The $\Delta$ resonance is treated as a Rarita-Schwinger field with phenomenological $N \Delta$ transition currents. The background contributions are given by the usual Born terms using the pseudovector $\pi N$ Lagrangian. Numerical results for the asymmetry are presented.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-08-08 | Zeitschrift f�r Physik A Hadrons and Nuclei |