ˆÀˆä ”ÉG (KEK‘f—±ŽqŒ´ŽqŠjŒ¤‹†Š—˜_ƒZƒ“ƒ^[)

"Exotic nuclei with charm and bottom flavors"

We discuss exotic nuclei including charm and bottom flavors,
and propose stable exotic nuclei bound with $\bar{D}$ and $B$ mesons with respecting heavy quark symmetry.
We indicate that an approximate degeneracy of $\bar{D}$($B$) and $\bar{D}^{*}$($B^{*}$) mesons plays an important role, and discuss the stability of $\bar{D}N$ and $BN$ bound states.
We find the binding energies 1.4 MeV and 9.4 MeV for each state in the $J^{P}=1/2^{-}$ with I=0 channel.
We discuss also possible existence of exotic nuclei $\bar{D}NN$ and $BNN$.
We propose experiments to observe these exotic nuclei which are accessible in J-PARC and GSI.