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Limit on Quark-Antiquark Mass Difference from the Neutral Kaon System

Michael J. Fromerth·Johann Rafelski
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Abstract

We quantify the limits on quark-antiquark mass differences imposed by the neutral kaon mass system. In particular, we find that an upper limit to the mass difference of 10^{-3} eV exists if mass differences across quark flavors are uncorrelated. In the upcoming antihydrogen experiments this limit on quark mass difference would allow a measurement of electron-positron mass difference up to a relative precision level of 10^{-15}.

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Michael J. Fromerth, Johann Rafelski. 2003-04-28. Limit on Quark-Antiquark Mass Difference from the Neutral Kaon System. https://arxiv.org/abs/hep-ph/0211362

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