Moving NRQCD for B Form Factors at High Recoil

Details Moving NRQCD for B Form Factors at High Recoil Moving NRQCD for B Form Factors at High Recoil

2002-09-18

arxiv.org/abs/hep-lat/0209135v1

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, 1 figure, Lattice2002(heavyquark)

Scientific paper

10.1016/S0920-5632(03)01609-8

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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