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arxiv: hep-lat/0209135 · v1 · submitted 2002-09-18 · ✦ hep-lat

Moving NRQCD for B Form Factors at High Recoil

classification ✦ hep-lat
keywords mnrqcdnrqcdfactorsformhighlatticemovingrecoil
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We derive the continuum and lattice tree-level moving NRQCD (mNRQCD) through order 1/m^2. mNRQCD is a generalization of NRQCD for dealing with hadrons with nonzero velocity u_mu. The quark's total momentum is written as P^mu=Mu^mu+k^mu where k^mu << Mu^mu is discretized and Mu^mu is treated exactly. Radiative corrections to couplings on the lattice are discussed. mNRQCD is particularly useful for calculating B->pi and B->D form factors since errors are similar at low and high recoil.

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