Effective Heavy Quark Theory

Abstract

We show how heavy quark effective theory, including 1/M corrections, may be matched onto dynamical quark models by making a specific choice of K,m and v in the p=mv+K expansion. We note that Wigner rotations of heavy quark spins arise at $O(p^2/m^2)$ in non-relativistic models but at $O({\Lambda }_{QCD}/M_Q)$ or O(velocity-transfer) in HQET and so are necessary for a consistent treatment.

9 pages

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