6533b828fe1ef96bd128961e

RESEARCH PRODUCT

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

Ph. BoucaudVicente Giménez GómezC.j. David LinV. LubiczGuido MartinelliMauro PapinuttoChristopher T. Sachrajda

subject

High Energy Physics::LatticeFísicaHigh Energy Physics::Experiment

description

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.

10.1016/s0920-5632(03)02567-2http://dx.doi.org/10.1016/S0920-5632(03)02567-2