Non-perturbative determination of Z_A^{stat} in quenched QCD

Details Non-perturbative determination of Z_A^{stat} in quenched QCD Non-perturbative determination of Z_A^{stat} in quenched QCD

2002-09-05

arxiv.org/abs/hep-lat/0209078v1

Physics

High Energy Physics

High Energy Physics - Lattice

Lattice2002(heavyquark), 3 pages, latex2e, 5 Postscript figures, uses epsfig, amssymb and espcrc2

Scientific paper

10.1016/S0920-5632(03)01636-0

We non-perturbatively calculate the renormalization factor of the static axial vector current in O(a) improved quenched lattice QCD. Its scale dependence is mapped out in the Schroedinger functional scheme by means of a recursive finite-size scaling technique, taking the continuum limit in each step. We also obtain Z_A^{stat} for Wilson fermions in order to renormalize existing unimproved data on F_B^{bare} non-perturbatively.

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