Analysis of the baryonic state $|[qc]c\rangle$

TL;DR

This paper analyzes the structure of the baryonic state |[qc]c⟩ with a spin-0 diquark, comparing it to similar states with spin-1 diquarks, and relates these to observed particles like Xi_cc states.

Contribution

It provides a detailed analysis of the baryonic state |[qc]c⟩ with a spin-0 diquark and its relation to experimentally observed Xi_cc states, offering insights into their internal structure.

Findings

|q(cc)⟩ corresponds to the LHCb observed state.

|(qc)c⟩ may be part of Xi_cc^{++}(3780).

|[qc]c⟩ ground state identified with Xi_cc^+(3520).

Abstract

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