Observation of String Breaking in QCD
  We numerically investigate the transition of the static quark-antiquark string into a static-light meson-antimeson system. Improving noise reduction techniques, we are able to resolve the signature of string breaking dynamics for n_f=2 lattice QCD at zero temperature. This result can be related to properties of quarkonium systems. We also study short-distance interactions between two static-light mesons. 
SESAM Collaboration: Gunnar S. Bali (1), Hartmut Neff (2), Thomas   Duessel (3), Thomas Lippert (3), Klaus Schilling (4) ((1...