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


Boucaud, Ph., Giménez, V., Lin, C.-J.D., Lubicz, V., Martinelli, G., Papinutto, M., Sachrajda, C.T. and SPQCDR Collaboration, (2004) Matrix elements of Delta(I) = 3/2 K -> pi pi decays. Nuclear Physics B - Proceedings Supplements, 129-130, 314-316. (doi:10.1016/S0920-5632(03)02567-2).

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Description/Abstract

We present a numerical computation of matrix elements of ΔI = 3/2 K → ππ 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 07,8 which can contribute significantly in the theoretical prediction of sol|ε′/ε. The study is done at β = 6.0 on a 243 × 64 lattice.

Item Type: Article
Additional Information: Lattice 2003
ISSNs: 0920-5632 (print)
Related URLs:
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > School of Physics and Astronomy
ePrint ID: 57104
Date Deposited: 14 Aug 2008
Last Modified: 27 Mar 2014 18:39
URI: http://eprints.soton.ac.uk/id/eprint/57104

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