From FAIR to RHIC, hyper clusters and an effective strange EoS for QCD

Kurchatov Institute, Russian Research Center, 123182 Moscow, RussiaTwo major aspects of strange particle physics at the upcoming FAIRand NICA facilities and the RHIC low energy scan will be discussed. A newdistinct production mechanism for hypernuclei will be presented, namelythe production abundances for hypernuclei from Λ’s absorbed in the spec-tator matter in peripheral heavy ion collisions. As strangeness is not uni-formly distributed in the fireball of a heavy ion collision, the properties ofthe equation of state therefore depend on the local strangeness fraction.The same, inside neutron stars strangeness is not conserved and latticestudies on the properties of finite density QCD usually rely on an expan-sion of thermodynamic quantities at zero strange chemical potential, henceat non-zero strange-densities. We will therefore discuss recent investiga-tions on the EoS of strange-QCD and present results from an effective EoSof QCD that includes the correct asymptotic degrees of freedom and adeconfinement and chiral phase transition.