by
Prof.Christopher Sachrajda(University of Southampton)
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Description
Both indirect and direct CP-violation were first discovered in nonleptonic
kaon decays. Our ability to interpret experimental data for these decays
in terms of fundamental physics is limited by the precision with which
non-perturbative QCD effects can be evaluated. In this talk I will review
the research programme of the RBC-UKQCD collaboration for kaon decays.
Recent physical results for the amplitude A2, corresponding to the
two-pion in the final state having isospin 2, will be presented and the
prospects for the evaluation of A0 will be discussed. In the final part of
the talk I will speculate on the possibility of evaluating
flavour-changing neutral current processes, such as the KL-KS mass
difference and rare kaon decays.
Some of the material can be found in arXiv:1111.1699 [hep-lat] and
arXiv:1106.2714 [hep-lat].
