Lattice Heavy Quark Effective Theory and the Isgur-Wise function

Details Lattice Heavy Quark Effective Theory and the Isgur-Wise function Lattice Heavy Quark Effective Theory and the Isgur-Wise function

1995-11-28

arxiv.org/abs/hep-lat/9511027v1

Phys.Rev. D54 (1996) 4578-4584

Physics

High Energy Physics

High Energy Physics - Lattice

14 pages of A4 format and 8 figures in one uuencoded postscript file

Scientific paper

10.1103/PhysRevD.54.4578

We compute the Isgur-Wise function using heavy quark effective theory formulated on the lattice. The non-relativistic kinetic energy term of the heavy quark is included to the action as well as terms remaining in the infinite quark mass limit. The classical velocity of the heavy quark is renormalized on the lattice and we determine the renormalized velocity non-perturbatively using the energy-momentum dispersion relation. The slope parameter of the Isgur-Wise function at zero recoil is obtained at $\beta=6.0$ on a $24^3\times 48$ lattice for three values of $m_{Q}$.

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