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We calculate form factors relevant for rare B decays using moving-NRQCD forthe b quark and the AsqTad action for the light quarks. Moving NRQCD allows usto work directly with the physical b quark mass and go to higher recoilmomentum compared to standard NRQCD. Here, we show first results for the matrixelements and the operator matching coefficients. Some difficulties and possibleways of improvement are discussed.

Rare B decays with moving NRQCD and improved staggered quarks