1994/07/29 by C. García-Recio, C. Garcia-Recio, J. Nieves +1 · 46 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scattering #nucl-th
paper · pdf · doi:10.1103/physrevc.51.237
published in Physical Review C 51(1), 237-251 (American Institute of Physics) · 27 pages, 17 figures (not all of them included, please request them), report UG-DFM-2/94
arxiv created 1994/07/29 · openalex publication_date 1995/01/01 · arxiv updated 2009/12/01 · openalex created_date 2017/10/20 · openalex updated_date 2026/08/05
A careful reanalysis is done of the contribution to K+-nucleus scattering from the interaction of the kaon with the virtual pion cloud. The usual approximations made in the evaluation of the related kaon self-energy are shown to fail. We also find new interaction mechanisms which provide appreciable correlations to the kaon self-energy. Some of these contribute to the imaginary part below the pion creation threshold. The inclusion of these new mechanisms in the inelastic part of the optical potential produces a significant improvement in the differential and total K+ nuclear cross sections. Uncertainties remain in the dispersive part of the optical potential.