Non-perturbative renormalization of kaon four-quark operators with nf=2+1 Domain Wall fermions

Details Non-perturbative renormalization of kaon four-quark operators with nf=2+1 Domain Wall fermions Non-perturbative renormalization of kaon four-quark operators with nf=2+1 Domain Wall fermions

2011-01-28

arxiv.org/abs/1101.5579v1

PoS(Lattice 2010)307

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 6 figures, contribution to the XXVIII International Symposium on Lattice Field Theory, Lattice 2010, June 14-19, 2010

Scientific paper

We present our strategy and some preliminary results for the renormalization of four-quark operators relevant for kaon physics. We follow the non-perturbative Rome-Southampton method, with both exceptional and non-exceptional kinematics. We also implement momentum sources and twisted boundary conditions. We use an (almost) unitary setup: Domain-Wall valence on nf=2+1 Domain-Wall sea and Iwasaki gauge action, at two values of the lattice spacing corresponding to approximately 0.086 fm and 0.114 fm . The chiral properties of these fermions play a crucial role in this compuation and are studied in detail in this work.

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