Non-perturbative improvement of lattice QCD at large momenta

Details Non-perturbative improvement of lattice QCD at large momenta Non-perturbative improvement of lattice QCD at large momenta

2001-06-10

arxiv.org/abs/hep-lat/0106003v2

Nucl.Phys.B611:311-337,2001

Physics

High Energy Physics

High Energy Physics - Lattice

28 pages, plain Latex. Corrected misleading reference. Version to appear in NPB

Scientific paper

10.1016/S0550-3213(01)00342-X

We propose a method to improve lattice operators composed of Wilson fermions
which allows the removal of all corrections of $O(a)$, including those
proportional to the quark mass. It requires off-shell improvement of quark
fields and composite operators, which is achieved by studying the behaviour of
quark and gluon correlation functions at large momenta.

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