Renormalization of the Lattice HQET Isgur-Wise Function

Details Renormalization of the Lattice HQET Isgur-Wise Function Renormalization of the Lattice HQET Isgur-Wise Function

1999-12-22

arxiv.org/abs/hep-lat/9912046v2

Phys.Rev.D62:114006,2000

Physics

High Energy Physics

High Energy Physics - Lattice

28 pages, 0 figures, LaTeX. Final version accepted for publication in Phys. Rev. D. (Minor changes.)

Scientific paper

10.1103/PhysRevD.62.114006

We compute the perturbative renormalization factors required to match to the continuum Isgur-Wise function, calculated using lattice Heavy Quark Effective Theory. The velocity, mass, wavefunction and current renormalizations are calculated for both the forward difference and backward difference actions for a variety of velocities. Subtleties are clarified regarding tadpole improvement, regulating divergences, and variations of techniques used in these renormalizations.

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