Jul 26 – 30, 2021
US/Eastern timezone

Calculating $\Delta m_K$ with lattice QCD

Jul 29, 2021, 10:15 PM
15m
Oral presentation Standard Model Parameters Standard Model Parameters

Speaker

Bigeng Wang (Columbia University)

Description

We have completed a lattice QCD calculation of $\Delta m_K$, the mass difference between the long- and short-lived K mesons. The calculation was performed on a $64^3 \times 128$ lattice using 152 configurations with physical quark masses and an inverse lattice spacing of $a^{-1}=2.36$ GeV. While the statistical error approaches a relatively small size of 9%, several sources of systematic errors may have more significant effects. In this talk we will address studies performed on smaller lattices to estimate the systematic errors in our result.

Primary author

Bigeng Wang (Columbia University)

Presentation materials