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- W2280445255 abstract "In this short review, I present the recent lattice computations of kaon weak matrix elements relevant to $K to pipi$ decays and neutral kaon mixing. These matrix elements are key to the theoretical determination of the CP violation parameters $epsilon$ and $epsilon'$ . Impressive progress have been achieved recently, in particular the first realistic computation of $epsilon'/epsilon$ with physical kinematics has been reported in [1]. The novelty is the $Delta I = 1/2$ channel, whereas the $Delta I = 3/2$ contribution is now computed at several values of the lattice spacing and extrapolated to the continuum limit. I will also present the status of $B_K$ and discuss its error budget, with a particular emphasis on the perturbative error. Finally I will review the matrix elements of neutral kaon mixing beyond the standard model and will argue that the discrepancy observed by different collaborations could be explained by the renormalisation procedure of the relevant four-quark operators." @default.
- W2280445255 created "2016-06-24" @default.
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- W2280445255 date "2015-12-08" @default.
- W2280445255 modified "2023-09-27" @default.
- W2280445255 title "CP violation and Kaon weak matrix elements from Lattice QCD" @default.
- W2280445255 hasPublicationYear "2015" @default.
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