Neutral Kaon mixing beyond the Standard Model
Abstract
We compute the hadronic matrix elements of the four-quark operators needed for the study of K0- K0 mixing beyond the Standard Model. We have used nf=2+1 flavours of domain wall fermion (DWF) at two values of the lattice spacing (a≈0.08 and a≈0.11fm) and with lightest unitary pion mass of ≈300\,MeV. Renormalisation is performed non-perturbatively and the impact of different intermediate momentum schemes is investigated.
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