出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Lattice simulations of B!pln decays are problematic in the low q2 region when the pion has to
have large momentum in the lattice frame for a B meson at rest or moving slowly. The moving-
NRQCD formalism provides a way around this by giving an accurate discretization of a b quark
moving at arbitrary velocity v, and therefore a B meson moving at high momentum in the lattice
frame. Here we show results from simulations of the moving-NRQCD action complete through
O(1=M) coupled to the asqtad action on a MILC ne ensemble. We show B, B masses as a
function of v and demonstrate how to determine the meson kinetic mass and the renormalization
of v non-perturbatively. We will also discuss the perturbative renormalization of the moving-
NRQCD action from high-b Monte Carlo simulations.
