Finite $ma$ corrections for sea quark matrix elements on the lattice

Details Finite $ma$ corrections for sea quark matrix elements on the lattice Finite $ma$ corrections for sea quark matrix elements on the lattice

1995-01-12

arxiv.org/abs/hep-lat/9501007v1

Phys.Rev.D52:4042-4052,1995

Physics

High Energy Physics

High Energy Physics - Lattice

17 pages latex file + 11 postscript figures in a uuencoded tar-compressed file.

Scientific paper

10.1103/PhysRevD.52.4042

We compute the $ma$ dependence of lattice renormalization factors for sea quark matrix elements. The results differ from the $(1+ma)$ correction factor commonly used for valence quarks and connected current insertions. We find that for sea quarks, the correction factors are in general larger and depend strongly on the Lorentz structure of the current under consideration. Results are presented both for the Wilson action and for the 2-link improved action of Hamber and Wu. Phenomenological implications are also briefly discussed in two examples.

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