Abstract
Lattice QCD calculations of baryon forces are performed for the first time with (almost) physical quark masses. = 2 + 1 dynamical clover fermion gauge configurations are generated at the lattice spacing of a \( \simeq \) 0.085 fm on a (96a)^4 \( \simeq \) (8.2 fm)^4 lattice with quark masses corresponding to (m_π,m_K) \( \simeq \) (146,525) MeV. Baryon forces are calculated using the time-dependent HAL QCD method. In this report, we study ΞΞ and NN systems both in ^1S_0 and ^3S_1–^3D_1 channels, and the results for the central and tensor forces as well as phase shifts in the ΞΞ (^1S_0) channel are presented.
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