English

Moving NRQCD for B Form Factors at High Recoil

High Energy Physics - Lattice 2009-11-07 v1

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.

Keywords

Cite

@article{arxiv.hep-lat/0209135,
  title  = {Moving NRQCD for B Form Factors at High Recoil},
  author = {Kerryann M. Foley and G. Peter Lepage},
  journal= {arXiv preprint arXiv:hep-lat/0209135},
  year   = {2009}
}

Comments

3 pages, 1 figure, Lattice2002(heavyquark)