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Bs and Bd mixing in full lattice QCD using NRQCD b quarks

Presenter: Christine Davies — University of Glasgow

E. Gamiz, J. Shigemitsu, C. Davies

We give a progress report on studies of Bs and Bd with valence NRQCD b quarks and asqtad/HISQ light quarks on the MILC configurations including the effect of 2+1 flavors of sea quarks. We explore methods for reducing statistical and systematic errors in the ratio ξ = fBsBBs/fBBB.