Particle systematics

Several aspects of hadron spectroscopy are reviewed. For the baryons, the status of the even parity 70 plet multiplets is examined in some detail. For the mesons, a rapid survey of the state of the qq multiplets leads on to a discussion of the identification of the 0/sup ++/ mesons as (q/sup 2/q/sup 2/) configurations. A brief account of Jaffe and Low's (1979) approach to this problem via the P-matrix is included. Throughout the review the interesting interplay between ideas from non-charmed and charmed hadron spectroscopy is underlined. (68 refs).