Staggered fermions and their $O(a)$ improvements

Details Staggered fermions and their $O(a)$ improvements Staggered fermions and their $O(a)$ improvements

1996-08-26

arxiv.org/abs/hep-lat/9608140v1

Nucl.Phys.Proc.Suppl. 53 (1997) 902-904

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, talk presented at LATTICE'96(Improvement)

Scientific paper

Expanding upon the arguments of Sharpe, we explicitly implement the Symanzik improvement program demonstrating the absence of order $a$ terms in the staggered fermion action. We propose a general program to improve fermion operators to remove $O(a)$ corrections from their matrix elements, and demonstrate this program for the examples of matrix elements of fermion bilinears and $B_K$. We also determine the additional operators which must be added to improve the staggered fermion currents.

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