ar X iv : 0 71 0 . 06 46 v 1 [ he p - la t ] 2 O ct 2 00 7 B s and B d mixing in full lattice QCD using NRQCD b quarks
نویسندگان
چکیده
We give a progress report on studies of B s and B d mixing with valence NRQCD b quarks and asq-tad light quarks on the MILC configurations including the effect of 2+1 flavours of sea quarks. We explore methods for reducing statistical and systematic errors in the ratio ξ = f B s B B s / f B d B B d .
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