PHENOMENOLOGICAL KN INTERACTION WITH ISOSPIN-BREAKING EFFECTS AND KNN SYSTEM

摘要

New isospin mixing KN — πΣ potential directly reproducing is level shift of kaonic hydrogen atom and other experimental data was constructed. Two forms of the potential reproducing one- and two-pole structure of A(1405) resonance were used. Accurate K-p scattering length was calculated using the obtained potentials.