Potential models, sum rules, color singlet model versus NREFT in Heavy Quarkonium

Abstract

I briefly review how nonrelativistic effective field theories solve old puzzles and open problems in heavy quarkonium physics.

Comments: Talk at the International Workshop on QCD: QCD@Work 2003- Conversano (Italy) 14-18 June 2003 (eConf C030614), 6 pages, uses wQCD03.cls