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arXiv · 1512.05398

Neutral Kaon mixing beyond the Standard Model

R. J. Hudspith·N. Garron·A. T. Lytle
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Abstract

We compute the hadronic matrix elements of the four-quark operators needed for the study of $K^0-{\bar K^0}$ mixing beyond the Standard Model. We have used $n_f=2+1$ flavours of domain wall fermion (DWF) at two values of the lattice spacing ($a\approx0.08$ and $a\approx0.11\text{fm}$) and with lightest unitary pion mass of $\approx300\,\text{MeV}$. Renormalisation is performed non-perturbatively and the impact of different intermediate momentum schemes is investigated.

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R. J. Hudspith, N. Garron, A. T. Lytle. 2015-12-16. Neutral Kaon mixing beyond the Standard Model. https://arxiv.org/abs/1512.05398

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