Spectroscopy Qf . & Ight and Heavy Quarks

New results on various controversial light mesons are reviewed, including the glueball candidates fs(1720) and ~(1460), the 1 ++-O-+ mass " coincidences " fi(1285)-n(1275) and fi(1420)-q(1420), as well as evidence for the X(3100)+Ap+nx and the p(148O)+&r, which have quantum numbers not allowed for qq. The 77+W dfects move out of the threshold region with data on 77+wp. Statistically weak data on I',(~~) and the search for heavy quark 'Pi states are presented. Pee, B,,, and Ptot for the Y(lS), Y(2S), and Y(3S) are updated using new data and a consistent treatment of the radiative corrections for I',. New data on the mass splittings of the xb(2P) compare favorably with the scalar confinement model, which may however have new trouble. This review was supposed to cover all the spec-troscopy presented in 3 parallel sessions: 77 Interactions , Heavy Bound-Quark States, and a particularly full session on Hadron Spectroscopy. It was too much, even aft,er the usual restriction to things I found interesting and could understand, and in desperation I decided to exclude baryons and Qq mesons. I sincerely hope the next conference offers those fields better treatment (and more time!) 2 KK and qq Resonances The light mesons part of this paper may be more than the casual reader wants to digest. There are many details, and few firm conclusions. However to simplify would be to mislead. Heavy mesons are a lot easier to deal with, and the last pages are devoted with relief to them. 1 New Meson Names Starting this year the Particle Data Group asks us to use their new naming scheme for hadrons [I]. New and old names are compared in Table 1. Much of this talk is devoted to the 3P~ states, which have Jpc = O++, l++, and 2 ++. The new scheme unifies them, with a subscript to label the spin. f stands for I=0 and a for I=l. If you can remember that S' and 6 were O++ mesons with I=0 and 1, you know that they are now fo and a+ The first step is harder than the second, demonstrating the need for new names. However progress is always accompanied by some pain. f' and 0 were a lot easier than fr(1525) and fs(1720). The search for glueballs has occupied many people over the last several years. At first there was hope that a candidate would be found satisfying all the criteria …