2003/01/31 by S. Janssen, Stijn Janssen, J. Ryckebusch +1
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #nucl-th
paper · pdf · doi:10.1103/physrevc.67.052201
published as Phys.Rev. C67 (2003) 052201 · Accepted for publication in PRC. Includes new data, additional paragraph and figure
arxiv created 2003/03/31 · openalex publication_date 2003/05/15 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Results for response functions for kaon electroproduction on the proton are presented. A tree-level hadrodynamical model is adopted and it is shown that some of the electroproduction response functions are particularly powerful with the eye on gaining control over the parametrization of the background diagrams. The existing dataset for the p(e,e^\ensuremath'K+)\ensuremathΛ reaction appears to rule out the use of a g_K+\ensuremathΛp coupling constant beyond the boundaries of softly broken SU(3) flavor symmetry. Also the use of soft hadronic form factors, which has been proposed as a valid alternative for a hadrodynamical description of the p(\ensuremathγ,K+)\ensuremathΛ data in the resonance region, seems to be disfavored by the magnitude of the measured p(e,e^\ensuremath'K+)\ensuremathΛ cross sections.