2008/10/31 by J. Révai, N. V. Shevchenko
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Coulomb #Elastic scattering #Isospin #Mixing (physics) #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #Resonance (particle physics) #Scattering #Scattering length #nucl-th
paper · pdf · doi:10.1103/physrevc.79.035202
published as Phys.Rev.C79:035202,2009 · 24 pages, 5 tables, 4 figures; one sentence was changed and one reference added
arxiv created 2008/11/06 · openalex publication_date 2009/03/03 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
New strong coupled-channels KN\text\ensuremath-\ensuremathπ\ensuremathΣ potential, reproducing all existing experimental data and suitable for using in an accurate few-body calculations, is constructed. Isospin breaking effects of direct inclusion of the Coulomb interaction and using of physical masses in calculations are investigated. The 1s level shift and width of kaonic hydrogen, consistent with the scattering data, was obtained and the corresponding exact strong K^\ensuremath-p scattering length was calculated. One- and two-pole form of \ensuremathΛ(1405) resonance was considered.