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=21− and JP=23−, 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±0.05μN and
μΛc+=−0.31±0.04μN. 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 QΛc+=(0.65±0.25)×10−3~fm2 and 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.Comment: 14 pages, 1 figur