Spectroscopic Analysis of Hidden-Charm Pentaquarks

TL;DR

This paper analyzes the spectroscopy of hidden-charm pentaquarks using a multiquark approach, calculating their masses and magnetic moments, and proposing production modes, with results aligning well with recent LHCb data.

Contribution

It introduces a comprehensive analysis of hidden-charm pentaquarks using SU(3) flavor symmetry, extending mass formulas, and calculating magnetic moments, providing predictions for future experiments.

Findings

Mass calculations agree with experimental data.

Magnetic moments are estimated using effective mass and charge techniques.

Suggested production modes for pentaquarks from bottom baryon decays.

Abstract

In this work, the multiquark approach is used to analyze the spectroscopy of hidden-charm pentaquark states, motivated by recent discoveries at the LHCb collaboration. Using the SU(3) flavor representation, pentaquarks having $J^P = 5/2^-$ are arranged into 10 (decuplet) of the SU(3) flavor multiplets. The masses of pentaquarks are calculated using the extension of the Gursey-Radicati mass formula and the effective mass scheme. Also, we calculated the magnetic moments of the hidden-charm pentaquarks using the effective mass and shielded charge technique. Further, we suggested the possible production modes for $J^P = 5/2^-$ pentaquarks from the decay of bottom baryons, which consist of pentaquark states as intermediate states. Our results for masses demonstrate reasonable agreement with the available data and our analysis for both masses and magnetic moments may be useful for future experimental studies.