Lattice String Breaking and Heavy Meson Decays

Details Lattice String Breaking and Heavy Meson Decays Lattice String Breaking and Heavy Meson Decays

1998-11-11

arxiv.org/abs/hep-lat/9811016v1

Phys.Lett. B447 (1999) 298-307

Physics

High Energy Physics

High Energy Physics - Lattice

19 pages, 3 figures

Scientific paper

10.1016/S0370-2693(98)01605-0

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 $\Upsilon(4S)\to B{\bar B}$. We extend the calculation to achieve rough estimates for the contributions of channels involving $B, B^*, B_s and B_s^*$ mesons to the width of the $\Upsilon(5S)$.

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