Magnetic Moments of Hidden-Charm Pentaquarks in the Diquark-Diquark-Antiquark Scheme

TL;DR

This paper calculates the magnetic moments of hidden-charm pentaquarks using a diquark-diquark-antiquark model, providing insights into their internal structure and aiding in distinguishing theoretical interpretations.

Contribution

It offers the first systematic calculation of magnetic moments for hidden-charm pentaquarks within the diquark-diquark-antiquark framework for various quantum numbers.

Findings

Magnetic moments vary with spin and flavor configurations.

Results compare favorably with existing theoretical predictions.

Predictions may help identify the internal structure of pentaquarks.

Abstract

The magnetic moment of a hadron is an important spectroscopic parameter that encodes valuable information about its internal structure. In this work, we systematically investigate the magnetic moments of hidden-charm pentaquark states, including the experimentally observed $P_c(4457)$ and related configurations with and without strangeness. The analysis is performed within the diquark-diquark-antiquark framework for spin-parity quantum numbers $J^P = \frac{1}{2}^-$, $\frac{3}{2}^-$, and $\frac{5}{2}^-$. Magnetic moment values are computed for different spin and flavor configurations, and the results are compared with existing predictions in the literature. These predictions may offer insight into the inner structure and quantum numbers of these exotic states, and potentially help distinguish between different theoretical models.