English

String breaking

High Energy Physics - Lattice 2009-11-11 v1

Abstract

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 Nf=2 lattice QCD at zero temperature. We discuss the lattice techniques used and present results on energy levels and mixing angle of the static two-state system. We visualize the action density distribution in the region of string breaking as a function of the static colour source-antisource separation. The results can be related to properties of quarkonium systems.

Keywords

Cite

@article{arxiv.hep-lat/0512018,
  title  = {String breaking},
  author = {Gunnar S Bali and Thomas Dussel and Thomas Lippert and Hartmut Neff and Zdravko Prkacin and Klaus Schilling},
  journal= {arXiv preprint arXiv:hep-lat/0512018},
  year   = {2009}
}

Comments

8 pages, Talk given at the Workshop on Computational Hadron Physics, Nicosia, Cyprus, 14--17 September 2005