Analysis of the Zb(10650) state based on electromagnetic properties

Abstract

In this study, the magnetic and quadrupole moments of the Z(b)(10650) state are determined using the compact diquark-antidiquark interpolating current through the QCD light-cone sum rule. The values that are obtained as a result of the analysis are as follows: mu Z(b) = 2.35( -0.33)(+0.34) mu (N) and DZ(b) = (1.82(+0.35) (-0.31)) x 10(-2) fm(2). Examining the results obtained, it can be seen that the magnetic moments are large enough to be measured experimentally, while the quadrupole moment is obtained as a small but non-zero value, corresponding to a prolate charge distribution. The magnetic moment is the leading-order response of a bound system to a weak external magnetic field. It therefore provides an excellent platform to probe the internal structures of hadrons governed by the quark-gluon dynamics of QCD.