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arXiv · hep-lat/0209135

Moving NRQCD for B Form Factors at High Recoil

Kerryann M. Foley·G. Peter Lepage
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Abstract

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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Kerryann M. Foley, G. Peter Lepage. 2002-09-18. Moving NRQCD for B Form Factors at High Recoil. https://doi.org/10.1016/s0920-5632(03)01609-8

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