QCD Effective Field Theories for Heavy Quarkonium

Abstract

QCD nonrelativistic effective field theories (NREFT) are the modern and most suitable frame to describe heavy quarkonium properties. Here I summarize few relevant concepts and some of the interesting physical applications (spectrum, decays, production) of NREFT.Comment: Invited plenary talk at the XI International Conference on Hadron Spectroscopy-Hadron05, Rio De Janeiro, 21-26 August 2006. 10 pages, 1 figur