Physical matrix elements for Delta I = 3/2 channel K to pi pi decays

Details Physical matrix elements for Delta I = 3/2 channel K to pi pi decays Physical matrix elements for Delta I = 3/2 channel K to pi pi decays

2009-06-10

arxiv.org/abs/0906.1847v2

PoS LATTICE2008:273,2008

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 3 figures, 2 tables, Talk presented at the XXVI International Symposium on Lattice Field Theory, July 14-19 2008, W

Scientific paper

K to pi pi matrix elements of the electroweak operator Q_(27,1)^Delta I=3/2 are calculated on the RBC/UKQCD 32^3 x 64, L_s=16 lattices, using 2+1 dynamical flavors and domain wall fermions, with an inverse lattice spacing of a^(-1)=2.42(4) GeV. Data is interpolated or extrapolated to energy conserving kinematics and a preliminary calculation of the experimental parameter |A_2| is performed.

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