2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/82916We report on progress in the development of a microscopic model for the hyperon-nucleon interaction within the meson-exchange framework, which incorporates both one-meson as well as correlated two-meson exchange contributions. The main new feature of the model is the exchange of two correlated pions or kaons, both in the scalar-isoscalar and the vector-isovector channels. In the scalar channel it provides the main part of the intermediate-range interaction between two baryons, thereby eliminating the need for the fictitious sigma meson, which has been an unavoidable element of effective one-boson-exchange descriptions.10 pages, 7 figures, presented at Sendai International Workshop on the Spectroscopy of Hypernuclei, Sendai, JapanNuclear TheoryHigh Energy Physics - Phenomenologytext