Masses and magnetic moments of pentaquarks

Abstract

We discuss the spectroscopy of pentaquarks. The quantum numbers of the ground state depend on the interplay between spin-flavor and orbital contributions to the energy. The magnetic moments of the lowest pentaquark state with negative and positive parity are found to be 0.382 \mu_N and 0.089 \mu_n, respectively.

Comments: 15 pages, 4 figures, 3 tables (text rewritten, extra figure added, essential results unchanged)