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We discuss the possibility of existence of exotic nuclei containing charm and  bottom mesons. We study the interaction between $ar{D}$ (B) mesons  and nucleons from view of heavy quark symmetry, and derive the one pion  exchange potentials. We apply these potentials to the two body system of  $ar{D}$ (B) meson and nucleon N , and nd there  are possible stable bound states with spin JP =  1/2− and isospin I = 0. We nd that the tensor  interaction mixing $ar{D}$N and $ar{D}$*N (BN and B*N) plays an important role.  We also qualitatively discuss the possible bound states of $ar{D}$ (B) meson and two nucleons

Exotic nuclei with charm and bottom ﬂavor