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Paper IPM / Physic / 15195 |
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Abstract: | |||||
We calculate the electromagnetic multipole moments
of the Pc+(4380) pentaquark by modeling it as the
diquark-diquark-antiquark and ―D*Σc molecular state with quantum numbers JP = [3/2]−.
In particular, the magnetic dipole, electric quadrupole
and magnetic octupole moments of this particle are extracted in the
framework of light-cone QCD sum rule.
The values of the electromagnetic multipole moments obtained
via two pictures differ substantially from each other, which can be used to pin
down the underlying structure of Pc+(4380).
The comparison of any future experimental data
on the electromagnetic multipole moments
of the Pc+(4380) pentaquark with the
results of the present work
can shed light on the nature and inner quark organization
of this state.
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