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)→BBˉ. We extend the calculation to achieve rough estimates for the contributions of channels involving B,B∗,BsandBs∗ mesons to the width of the Υ(5S).
@article{arxiv.hep-lat/9811016,
title = {Lattice String Breaking and Heavy Meson Decays},
author = {I T Drummond and R R Horgan},
journal= {arXiv preprint arXiv:hep-lat/9811016},
year = {2009}
}