Heavy Quark Symmetry - SLAC National Accelerator Laboratory
the strong coupling constant, taken at the scale of the heavy quark ?s(mQ) and
the ratio ¯?/mQ .... In this limit new symmetries appear which are the key to
various model independent statements concerning weak decay matrix elements;
these symmetries are .... heavy hadron, and which is a ?small? quantity of order
?QCD.Télécharger Heavy Quark Symmetry - SLAC National Accelerator Laboratory pdf
