2023/09/02 by U. Özdem, Özdem, U.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.2309.00959
openalex publication_date 2023/09/02 · openalex created_date 2023/09/08 · openalex updated_date 2026/07/28
The Σc(2800)+ and Λc(2940)+ states are among the most interesting and intriguing particles whose internal structures have not yet been elucidated. Inspired by this, the magnetic dipole moments of the Σc(2800)+ and Λc(2940)+ states with quantum numbers JP = (1)/(2)- and JP = (3)/(2)-, respectively, are analyzed in the framework of QCD light-cone sum rules, assuming that they have a molecule composed of a nucleon and a D(*) meson. The magnetic dipole moments are obtained as μΣc+=0.26 ± 0.05~μN and μΛc+=-0.31 ± 0.04~μN. The magnetic dipole moment is the leading-order response of a bound system to a weak external magnetic field. It therefore offers an excellent platform to explore the inner organization of hadrons governed by the quark-gluon dynamics of QCD. Comparison of the findings of this analysis with future experimental results on the magnetic dipole moments of the Σc(2800)+ and Λc(2940)+ states may shed light on the nature and internal organization of these states. The electric quadrupole and magnetic octupole moments of the Λc(2940)+ states have also been calculated, and these values are determined to be \mathcal QΛc+ = (0.65 ± 0.25) × 10-3~fm2 and \mathcal OΛc+ = -(0.38 ± 0.10) × 10-3~fm3, respectively. The values of the electric quadrupole and magnetic octupole moments show a non-spherical charge distribution. We hope that our estimates of the electromagnetic properties of the Σc(2800)+ and Λc(2940)+ states, together with the results of other theoretical studies of the spectroscopic parameters of these states, will be useful for their search in future experiments and will help us to define the exact internal structures of these states.