2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/228516We predict the energy per baryon in nuclear matter with non-zero fraction of $Λ$ hyperons. We include Dirac effects on the nucleons as well as the $Λ$ and describe how the latter is implemented. We use the nucleon-hyperon meson-exchange potentials from the Juelich group, the latest as well as an earlier version. The dependence of the results on the many-body framework and on the nucleon-hyperon interaction model is discussed.12 pages, 3 figures. Accepted for publication in Physical Review CNuclear Theorytext