Charmed baryon in a Diquark model

Abstract

A diquark model is used to investigate single charmed baryons. In this model, baryon is composed of two diquarks and an antiquark. Masses of lowest lying states with $J^P=1/2^{\pm }$ are obtained. Some masses are smaller than other theoretic predictions which indicates that these baryons of pentaquark structure could be relatively stable. The results also show that $\Lambda (2882)$ may be a pentaquark with $J^P=1/2^{-}$ and $\Xi (3125)$ may be a pentaquark with $J^P=1/2^{+}$.

4 pages,1 figure,2 tables