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Lattice String Breaking and Heavy Meson Decays

I T Drummond, R R Horgan

hep-latarXiv:hep-lat/9811016

Abstract

We show how string breaking on the lattice, treated as a mixing effect, can be related to decay rates for heavy quark systems. We use this to make a preliminary calculation of the energy split at maximum mixing for static quarks in QCD from the decay rate for Υ(4S) B B. We extend the calculation to achieve rough estimates for the contributions of channels involving B, B*, Bs and Bs* mesons to the width of the Υ(5S).

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