The Juelich hyperon-nucleon model revisited
Abstract
A one-boson-exchange model for the hyperon-nucleon ( N, N) interaction is presented. The model incorporates the standard one boson exchanges of the lowest pseudoscalar and vector meson multiplets with coupling constants fixed by SU(6) flavor symmetry relations. As the main new feature of the model, the contributions in the scalar--isoscalar (σ) and vector--isovector () exchange channels are now constrained by a microscopic model of correlated ππ and K K exchange. Additional short-ranged ingredients of the model in the scalar--isovector (a0) and scalar--isospin-1/2 () channels are likewise viewed as arising from meson-meson correlations but are treated phenomenologically. With this model a satisfactory reproduction of the available hyperon-nucleon data can be achieved.
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.