Analysis of the baryonic state $|[qc]c⟩$

Abstract

In this note we analyse the structure of the baryonic state $|[qc]c⟩$ with a spin-0 diquark $[qc]$, as compared to baryonic states $|(qc)c⟩$ and $|q(cc)⟩$ containing internal spin-1 diquark states. While one can identify the state $|q(cc)⟩$ with the state observed at LHCb, the state $|(qc)c⟩$ could probably be part of the state ${\Xi }_{cc}^{++}(3780)$. Accordingly, the ground state of $|[qc]c⟩$ can be identified with the state ${\Xi }_{cc}^{+}(3520)$.

Comments: 5 pages