Perturbative quark bound states in pNRQCD

Abstract

In the framework of the QCD effective field theory called potential Non-Relativistic QCD, we explore quark-antiquark bound systems that may be dominated by the perturbative interaction and we discuss the extent of validity of such a picture. Some phenomenological implications are outlined.

Comments: 9 pages, 4 Figures, espcrc2.sty; Invited talk given at the International Euroconference QCD 00, Montpellier, France, July 6-13th, 2000. To be published in Nucl. Phys. Proc. Suppl