6533b85bfe1ef96bd12ba997

RESEARCH PRODUCT

VECTOR-BARYON DYNAMICS IN γN → K0Σ REACTIONS

E. OsetA. Ramos

subject

BaryonScattering cross-sectionPhysicsAmplitudeMesonDrop (liquid)ResonanceAtomic physicsChannel models

description

A coupled channel model for the interaction of vector mesons with baryons is employed in the study of the γp → K0Σ+ reaction around the K*Λ and K*Σ thresholds, where the recent CBELSA/TAPS cross section shows a sudden drop and the differential cross section experiences a transition from a forward-peaked distribution to a flat one. A delicate interference between amplitudes having K*Λ and K*Σ intermediate states is found. The sharp downfall is dictated by the presence of a N* resonance produced by our model, a feature that we have employed to infer its properties. Predictions for the complementary γn → K0Σ0 reaction are also given.

https://doi.org/10.1142/s2010194514600957