The possible hidden-charm molecular baryons composed of anti-charmed meson and charmed baryon

Abstract

With the one-boson-exchange model we have studied the possible existence of the very loosely bound hidden-charm molecular baryons composed of anti-charmed meson and charmed baryon. Our numerical results indicate that there exist ${\Sigma }_c{\bar{D}}^{\ast }$ states with $I(J^P)=1/2(1/2^{-}),1/2(3/2^{-}),3/2(1/2^{-}),3/2(3/2^{-})$ and ${\Sigma }_c\bar{D}$ state with $3/2(1/2^{-})$. But the ${\Lambda }_c\bar{D}$ and ${\Lambda }_c{\bar{D}}^{\ast }$ molecular states do not exist.

Comments: 8 pages, 2 tables, 3 figures. Matches version accepted for publication in Chinese Physics C