Renormalization factor of four fermi operators with clover fermion and Iwasaki gauge action

Details Renormalization factor of four fermi operators with clover fermion and Iwasaki gauge action Renormalization factor of four fermi operators with clover fermion and Iwasaki gauge action

2011-11-10

arxiv.org/abs/1111.2381v2

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages. Talk presented at the XXIX International Symposium on Lattice Field Theory (Lattice 2011), July 10-16, 2011, Squaw Va

Scientific paper

Renormalization factors of four-quark operators are perturbatively calculated for the improved Wilson fermion with clover term and the Iwasaki gauge action. A main application shall be the $K\to\pi\pi$ decay amplitude and the calculation is restricted to the parity odd operator, for which the operators are multiplicatively renormalizable without mixing with wrong operators that have different chiral structures.

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