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The controversy about "1/mQ duality violation" ; a quark model point of view

Alain Le Yaouanc, Dimitri Melikhov, Vincent Morenas, Lluis Oliver, Olivier Pene, Jean-Claude Raynal

hep-pharXiv:hep-ph/0606231

Abstract

A detailed discussion based on exact calculations, possible in the non relativistic quark model, is given to show that there is no 1/mQ term in the heavy quark expansion of totally integrated semileptonic decay rates. More generally, it is shown that OPE holds with very few terms in the expansion, at least in the harmonic oscillator model.

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