arXiv:0710.0646·v1·High Energy Physics — Lattice
B_s and B_d mixing in full lattice QCD using NRQCD b quarks
Elvira Gamiz🇺🇸 · Christine T.H. Davies🇬🇧 · G. Peter Lepage🇺🇸 · Junko Shigemitsu🇺🇸 · Matthew Wingate🇬🇧
Abstract
We give a progress report on studies of B_s and B_d mixing with valence NRQCD b quarks and asqtad 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 \xi = f_{B_s}\sqrt{B_{B_s}}/f_{B_d}\sqrt{B_{B_d}}.
Comments: 7 pages, talk at The XXV International Symposium on Lattice Field Theory, July 30 - August 4 2007, Regensburg,