Electromagnetic properties of D¯(⁎)Ξc′, D¯(⁎)Λc, D¯s(⁎)Λc and D¯s(⁎)Ξc pentaquarks

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 D¯(⁎)Ξc′, D¯(⁎)Λc, D¯s(⁎)Λc and D¯s(⁎)Ξc 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 D¯⁎Ξc′, D¯⁎Λc, D¯s⁎Λc and D¯s⁎Ξc 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.

Keywords

• Magnetic dipole moment
• Electromagnetic properties
• Molecular picture
• Hidden-charm pentaquarks
• QCD light-cone sum rules