Progress Calculating Decay Constants with NRQCD and AsqTad Actions

Matthew Wingate, Christine Davies, Alan Gray, Emel Gulez, G. Peter Lepage, Junko Shigemitsu

Research output: Contribution to journalArticlepeer-review

Abstract

We combine a light AsqTad antiquark with a nonrelativistic heavy quark to compute the decay constants of heavy-light pseudoscalar mesons using the ensemble of 3-flavor gauge field configurations generated by the MILC collaboration. Preliminary results for $f_{B_s}$ and $f_{D_s}$ are given and status of the chiral extrapolation to $f_B$ is reported. We also touch upon results of the perturbative calculation which matches matrix elements in the effective theory to the full theory at 1-loop order.
Original languageEnglish
Pages (from-to)325–327
JournalNuclear Physics B - Proceedings Supplements
Volume129-130
DOIs
Publication statusPublished - 15 Sep 2003

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