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arXiv · hep-lat/0309039

Heavy-Light Meson Semileptonic Decays with Staggered Light Quarks

J. Shigemitsu·C. T. H. Davies·A. Gray·E. Gulez·G. P. Lepage·M. Wingate
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Abstract

We report on exploratory studies of heavy-light meson semileptonic decays using Asqtad light quarks, NRQCD heavy quarks and Symanzik improved glue on coarse quenched lattices. Oscillatory contributions to three-point correlators coming from the staggered light quarks are found to be handled well by Bayesian fitting methods. B meson decays to both the Goldstone pion and to one of the point-split non-Goldstone pions are investigated. One-loop perturbative matching of NRQCD/Asqtad heavy-light currents is incorporated.

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J. Shigemitsu, C. T. H. Davies, A. Gray, E. Gulez, G. P. Lepage, M. Wingate. 2003-09-10. Heavy-Light Meson Semileptonic Decays with Staggered Light Quarks. https://doi.org/10.1016/s0920-5632(03)02572-6

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