Electromagnetic properties of $\bar D^{(*)}\Xi^{\prime}_c$, $\bar D^{(*)}\Lambda_c$, $\bar D_s^{(*)}\Lambda_c$ and $\bar D_s^{(*)}\Xi_c$ pentaquarks

TL;DR

This paper investigates the electromagnetic properties of various hidden-charm pentaquarks using QCD light-cone sum rules, aiming to shed light on their internal quark-gluon structure.

Contribution

It provides the first detailed calculation of electromagnetic moments for these pentaquarks, including electric quadrupole and magnetic octupole moments, using a QCD-based theoretical approach.

Findings

Magnetic dipole moments calculated for different pentaquarks.

Electric quadrupole and magnetic octupole moments evaluated.

Results aim to guide experimental investigations of pentaquark structures.

Abstract

To elucidate the internal structure of exotic states is one of the central purposes of hadron physics. Motivated by this, we study the electromagnetic properties of $\bar D^{(*)}\Xi^{\prime}_c$, $\bar D^{(*)}\Lambda_c$, $\bar D_s^{(*)}\Lambda_c$ and $\bar D_s^{(*)}\Xi_c$ pentaquarks without strange, with strange and with double strange through QCD light-cone sum rules. We have also evaluated electric quadrupole and magnetic octupole moments of the $\bar D^{*}\Xi^{\prime}_c$, $\bar D^{*}\Lambda_c$, $\bar D_s^{*}\Lambda_c$ and $\bar D_s^{*}\Xi_c$ pentaquarks. The magnetic dipole moment is the leading-order response of a bound system to a soft external magnetic field. Thus, it ensures a prominent platform for the examination of the internal organizations of hadrons governed by the quark-gluon dynamics of QCD. We look forward to the present study stimulating the interest of experimentalists in investigating the electromagnetic properties of the hidden-charm pentaquarks.