Baryon interactions from lattice QCD with physical quark masses -- Nuclear forces and $ΞΞ$ forces --

We present the latest lattice QCD results for baryon interactions obtained at nearly physical quark masses. Nf = 2 + 1 nonperturbatively O(a) -improved Wilson quark action with stout smearing and Iwasaki gauge action are employed on the lattice of (96a)4 ≃(8.1fm)4 with a-1 ≃2.3 GeV, where mπ ≃146 MeV and mK ≃525 MeV. In this report, we study the two-nucleon systems and two-Ξ systems in 1 S0 channel and 3 S 1 -3 D 1 coupled channel, and extract central and tensor interactions by the HAL QCD method. We also present the results for the NΩ interaction in 5 S2 channel which is relevant to the NΩ pair-momentum correlation in heavy-ion collision experiments.