Heavy-light physics using NRQCD-staggered actions

Matthew Wingate; Junko Shigemitsu; G. Peter Lepage

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arXiv · hep-lat/0110161

Heavy-light physics using NRQCD-staggered actions

Matthew Wingate·Junko Shigemitsu·G. Peter Lepage

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Abstract

One leading source of uncertainty in the lattice computation of semi-leptonic form factors in B decay, and to a lesser extent B meson decay constants, comes from the extrapolation of the light quark mass to the physical up/down mass. This talk presents first explorations of simulating the light quark with staggered fermion actions, which are free of the spurious zero modes that effect Wilson-like Dirac operators and are less costly. Methods for fitting to Euclidean-time NRQCD-staggered meson propagators are discussed, and some preliminary spectrum results are presented.

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Matthew Wingate, Junko Shigemitsu, G. Peter Lepage. 2001-10-18. Heavy-light physics using NRQCD-staggered actions. https://arxiv.org/abs/hep-lat/0110161

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