A Lattice Study of Spin and Flavour Symmetry in Heavy Quark Physics
Henning Hoeber
Abstract
We present a first test of heavy quark spin-flavour symmetries in matrix elements for semi-leptonic decays B to D lνand B to D* lν. We show that O(1/mQ) corrections are small at masses around the charm for form factors protected by Luke's Theorem, but are of order 30-40 \% for hV and hV/hA1.
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