Effective Theory for Heavy Quarkonia Decays

Abstract

An effective theory approach to heavy quarkonia decays based on the $1/m_Q$ expansion is introduced. Its application to decays in which the two heavy quarks annihilate is discussed.

Comments: Contribution to the III German--Russian Workshop on Heavy Quark Physics, Dubna, Russia, May 20--22, 1996 6 pages, LaTeX, no figures