6533b861fe1ef96bd12c43c4
RESEARCH PRODUCT
Threshold π0 photo- and electro-production in a meson-exchange model
L. TiatorGuan-yeu ChenS.n. YangS.s. KamalovDieter Drechselsubject
PhysicsNuclear and High Energy PhysicsParticle physicsNuclear TheoryMesonNuclear TheoryFOS: Physical sciencesResonance (particle physics)Nuclear Theory (nucl-th)Nuclear physicsNear thresholdPionProduction (economics)Nuclear ExperimentNuclear theoryExchange modelCharge exchangedescription
We show that, within a meson-exchange dynamical model describing well most of the existing pion electromagnetic production data up to the second resonance region, one is also able to obtain a good agreement with the pi^0 photo- and electroproduction data near threshold. In the case of pi^0 production, the effects of final state interaction in the threshold region are nearly saturated by single charge exchange rescattering. This indicates that in ChPT, it might be sufficient to carry out the calculation just up to one-loop diagrams for threshold neutral pion production.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-12-27 | Nuclear Physics A |