B_K from improved staggered quarks

E. Gamiz; S. Collins; C. T. H. Davies; J. Shigemitsu; M. Wingate

doi:10.1016/j.nuclphysbps.2004.11.325

B_K from improved staggered quarks

High Energy Physics - Lattice 2010-01-18 v1 High Energy Physics - Phenomenology

Authors: E. Gamiz , S. Collins , C. T. H. Davies , J. Shigemitsu , M. Wingate

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Abstract

We compare calculations of B_K with improved staggered quarks (HYP, Asqtad) and demonstrate the improved scaling behaviour that this gives rise to over previous calculations with unimproved staggered quarks. This enables us to perform the calculation of B_K on the MILC dynamical configurations (n_f=2+1), for which we give preliminary results.

Cite

@article{arxiv.hep-lat/0409049,
  title  = {B_K from improved staggered quarks},
  author = {E. Gamiz and S. Collins and C. T. H. Davies and J. Shigemitsu and M. Wingate},
  journal= {arXiv preprint arXiv:hep-lat/0409049},
  year   = {2010}
}

Comments

3 pages, 3 figures. Talk presented at Lattice 2004(weak), Fermilab, June 21-26, 2004

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