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Heavy-light mesons with staggered light quarks
Matthew Wingate, Junko Shigemitsu, Christine T. H. Davies +2
We demonstrate the viability of improved staggered light quarks in studies of heavy-light systems. Our method for constructing heavy-light operators exploits the close relation bet…
The determination of alpha_s from lattice QCD with 2+1 flavors of dynamical quarks
C. Davies, A. Gray, M. Alford +8
We describe the first lattice determination of the strong coupling constant with 3 flavors of dynamical quarks. The method follows previous analyses in using a perturbative expansi…
B_s Mesons using Staggered Light Quarks
Matthew Wingate, Junko Shigemitsu, G. Peter Lepage +2
Last year we proposed using staggered fermions as the light quarks, combined with nonrelativistic heavy quarks, in simulations of heavy-light mesons. A first round of tests which f…
The Upsilon Spectrum from Lattice QCD with 2+1 Flavors of Dynamical Quarks
A. Gray, C. Davies, M. Alford +8
We describe the bottomonium spectrum obtained on the MILC configurations which incorporate 2+1 flavors of dynamical quarks. We compare to quenched and 2 flavor results also on MILC…
Semileptonic B Decays from an NRQCD/D234 Action
J. Shigemitsu, S. Collins, C. T. H. Davies +3
Semileptonic B decays are studied on quenched anisotropic lattices using Symanzik improved glue, NRQCD heavy quark and D234 light quark actions. We employ constrained fits to extra…
Semileptonic B Decays from an NRQCD/D234 Action
J. Shigemitsu, S. Collins, C. T. H. Davies +3
Semileptonic, B --> pi, l nubar, decays are studied on quenched anisotropic lattices using tree-level tadpole improved Symanzik glue, NRQCD heavy quark and D234 light quark actions…