Rare B decays with moving NRQCD and improved staggered quarks

Details Rare B decays with moving NRQCD and improved staggered quarks Rare B decays with moving NRQCD and improved staggered quarks

2008-10-06

arxiv.org/abs/0810.0921v1

PoS LATTICE2008:280,2008

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 8 figures, Talk presented at the XXVI International Symposium on Lattice Field Theory, July 14-19, 2008, Williamsburg

Scientific paper

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

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