Magnetic moments of S-shell pentaquarks in the constituent quark model

Abstract

We discuss the magnetic moments of the recently discovered exotic baryons Theta(+) and Xi(--) and their multiplet partners in the framework of a naive additive quark model. These baryons are set up as pentaquark states where four quarks and a single antiquark are located in their ground state orbit. The pentaquark states are classified as members of the flavor SU(3) octet and antidecuplet with spin-parity J^P = (1/2)^- and (3/2)^-, where we determine the magnetic moments of these pentaquark states.

Comments: 13 pages, 2 figures, elsart; publication version, 8 pages, 1 figure, ptptex; upload miss corrected