Baryon Interactions from Lattice QCD

Abstract

We report on new attempt to investigate baryon-baryon interactions in lattice QCD. From the Bethe-Salpeter (BS) wave function, we have successfully extracted the nucleon-nucleon ($NN$) potentials in quenched QCD simulations, which reproduce qualitative features of modern $NN$ potentials. The method has been extended to obtain the tensor potential as well as the central potential and also applied to the hyperon-nucleon ($YN$) interactions, in both quenched and full QCD.

Comments: 9 pages, 9 figures, Talk given at 7th Japan-China Joint Nuclear Physics Symposium, Nov.9-13, 2009, University of Tsukuba, Ibaraki, Japan