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08 February 2025
 
  » arxiv » 2301.01387

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Calculating $Δm_K$ with lattice QCD
Bigeng Wang ;
Date 3 Jan 2023
AbstractWe 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 $64^3 imes 128$ lattice using 152 configurations with physical quark masses and an inverse lattice spacing of $1/a=2.36$ GeV. While the statistical error approaches a relatively small size of 9%, several sources of systematic errors may have more significant effects. In this paper we will address studies performed on smaller lattices to estimate the systematic errors in our result.
Source arXiv, 2301.01387
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