BSM Kaon Mixing at the Physical Point

TL;DR

This paper reports progress on calculating BSM kaon mixing matrix elements at the physical point using lattice QCD simulations with multiple lattice spacings and pion masses.

Contribution

It provides an update on BSM kaon mixing matrix element calculations at the physical point with improved lattice QCD methods.

Findings

Progress in calculating BSM kaon mixing matrix elements.

Use of 2+1 flavor domain wall lattice QCD with multiple lattice spacings.

Simulations include pion masses from 430 MeV to the physical pion mass.

Abstract

We present a progress update on the calculation of beyond the standard model (BSM) kaon mixing matrix elements at the physical point. Simulations are performed using 2+1 flavour domain wall lattice QCD with the Iwasaki gauge action at 3 lattice spacings and with pion masses ranging from 430 MeV to the physical pion mass.