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arXiv · hep-lat/0110072

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
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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 $m_ρ$, 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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C. Bernard, T. Burch, S. Datta, T. DeGrand, C. DeTar, Steven Gottlieb, Urs M. Heller, K. Orginos, R. Sugar, D. Toussaint. 2001-10-12. Heavy-light decay constants with three dynamical flavors. https://doi.org/10.1016/s0920-5632(01)01731-5

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