Heavy-light decay constants with three dynamical flavors

Details Heavy-light decay constants with three dynamical flavors Heavy-light decay constants with three dynamical flavors

2001-10-12

arxiv.org/abs/hep-lat/0110072v1

Nucl.Phys.Proc.Suppl.106:412-414,2002

Physics

High Energy Physics

High Energy Physics - Lattice

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

Scientific paper

10.1016/S0920-5632(01)01731-5

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.

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