Heavy-light decay constants with three dynamical flavors

C. Bernard; T. Burch; S. Datta; T. DeGrand; C. DeTar; Steven Gottlieb; Urs M. Heller; K. Orginos; R. Sugar; D. Toussaint

doi:10.1016/S0920-5632(01)01731-5

Heavy-light decay constants with three dynamical flavors

High Energy Physics - Lattice 2008-11-26 v1

Authors: C. Bernard , T. Burch , S. Datta , T. DeGrand , C. DeTar , Steven Gottlieb , Urs M. Heller , K. Orginos , R. Sugar , D. Toussaint

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Abstract

We present preliminary results for the heavy-light leptonic decay constants in the presence of three light dynamical flavors. We generate dynamical configurations with improved staggered and gauge actions and analyze them for heavy-light physics with tadpole improved clover valence quarks. When the scale is set by $m_\rho$ , we find an increase of approximately 23% in $f_B$ with three dynamical flavors over the quenched case. Discretization errors appear to be small (of order 3% or less) in the quenched case but have not yet been measured in the dynamical case.

Keywords

lattice qcd meson decay

Cite

@article{arxiv.hep-lat/0110072,
  title  = {Heavy-light decay constants with three dynamical flavors},
  author = {C. Bernard and T. Burch and S. Datta and T. DeGrand and C. DeTar and Steven Gottlieb and Urs M. Heller and K. Orginos and R. Sugar and D. Toussaint},
  journal= {arXiv preprint arXiv:hep-lat/0110072},
  year   = {2008}
}

Comments

contribution to Lattice2001(heavyquark); 3 pages, 3 postscript figures

Heavy-light decay constants with three dynamical flavors

Abstract

Keywords

Cite

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