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Matrix elements of Delta I=3/2 K ->pi pi decays

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	Boucaud, Ph.; Giménez Gómez, Vicente; David Lin, C.J.; Lubicz, V.; Martinelli, Guido; Papinutto, Mauro; Sachrajda, Christopher T.
	This document is a artículoDate2004
	Este documento está disponible también en : http://hdl.handle.net/10550/38972
	We present a numerical computation of matrix elements of DeltaI = 3/2 K --> pipi decays by using Wilson fermions. In order to extrapolate to the physical point we work at unphysical kinematics and we resort to Chiral Perturbation Theory at the next-to-leading order. In particular we explain the case of the electroweak penguins O-7,O-8 which can contribute significantly in the theoretical prediction of epsilon'/epsilon. The study is done at beta = 6.0 on a 24(3) x 64 lattice.
	Boucaud, Ph. Giménez Gómez, Vicente David Lin, C.J. Lubicz, V. Martinelli, G. Papinutto, Mauro Sachrajda, C.T. 2004 Matrix elements of Delta I=3/2 K ->pi pi decays Nuclear Physics B-Proceedings Supplements 129 314 316
	http://dx.doi.org/10.1016/S0920-5632(03)02567-2