Heavy-Light Decay Constants with Dynamical Gauge Configurations and Wilson or Improved Valence Quark Action

Details Heavy-Light Decay Constants with Dynamical Gauge Configurations and Wilson or Improved Valence Quark Action Heavy-Light Decay Constants with Dynamical Gauge Configurations and Wilson or Improved Valence Quark Action

1999-09-15

arxiv.org/abs/hep-lat/9909121v1

Nucl.Phys.Proc.Suppl.83:289-291,2000

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, 1 figure, LeTeX, uses espcrc2, epsf LATTICE99(Heavy Quarks)

Scientific paper

10.1016/S0920-5632(00)91647-5

We describe a calculation of heavy-light decay constants including virtual quark loop effects. We have generated dynamical gauge configurations at three $\beta$ values using two flavors of Kogut-Susskind quarks with a range of masses. These are analyzed with a Wilson valence quark action. Preliminary results based on a ``fat-link'' clover valence quark action are also reported. Results from the two methods differ by 30 to 50 MeV, which is presumably due to significant - but as yet unobserved - lattice spacing dependence in one or both of the approaches.

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