F. Erben

Aug 2, 2024 | link.aps.org | UKQCD collaborations |Liverpool Hope |Hope Park |F. Erben

We present nonperturbative results for beyond the standard model kaon mixing matrix elements in the isospin symmetric limit (mu=md) of QCD, including a complete estimate of all dominant sources of systematic error. Our results are obtained from numerical simulations of lattice QCD with Nf=2+1 flavors of dynamical domain wall fermions. For the first time, these quantities are simulated directly at the physical pion mass mπ∼139  MeV for two different lattice spacings.