Magnetic moments of exotic pentaquarks in the chiral quark-soliton model

Abstract

We investigate the magnetic moments of the baryon antidecuplet within the framework of the chiral quark-soliton model in the chiral limit in a ``\emph{model-independent}'' approach. Sum rules for the magnetic moments are derived. The magnetic moment of ${\Theta }^{+}$ is found to be about $0.2\sim 0.3{\mu }_N$.

Comments: 9 pages, 1 figure, submitted to Phys. Lett. B. The title was changed. One sign mistake was removed with the text extended. One author is added