Hadjimichef, D.Haidenbauer, J.Krein, G. [UNESP]2022-04-292022-04-292002-01-01Physical Review C - Nuclear Physics, v. 66, n. 5, p. 11-, 2002.1089-490X0556-2813http://hdl.handle.net/11449/228436The short-range properties of the kaon-nucleon [Formula Presented] interaction are studied within the meson-exchange model of the Jülich group. Specifically, dynamical explanations for the phenomenological short-range repulsion, required in this model for achieving agreement with the empirical [Formula Presented] data, are explored. Evidence is found that contributions from the exchange of a heavy scalar-isovector meson [Formula Presented] as well as from genuine quark-gluon exchange processes are needed. Taking both mechanisms into account, a satisfactory description of the [Formula Presented] phase shifts can be obtained without resorting to phenomenological pieces. © 2002 The American Physical Society.11engArtigo10.1103/PhysRevC.66.0552142-s2.0-85035306440