On cutoff effects in lattice QCD from short to long distances

Details On cutoff effects in lattice QCD from short to long distances On cutoff effects in lattice QCD from short to long distances

2008-07-07

arxiv.org/abs/0807.1120v2

Phys.Lett.B672:407-412,2009

Physics

High Energy Physics

High Energy Physics - Lattice

16 pages, 4 figures and 2 tables. References modified

Scientific paper

10.1016/j.physletb.2009.01.059

We discuss kinematical enhancements of cutoff effects at short and intermediate distances. Starting from a pedagogical example with periodic boundary conditions, we switch to the case of the Schroedinger Functional, where the theoretical analysis is checked by precise numerical data with Nf=2 dynamical O(a)-improved Wilson quarks. Finally we present an improved determination of the renormalization of the axial current in that theory.

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