$CP$ violation in neutral kaon mixing in $D^0\rightarrow K_SK_S$

Yuval Grossman; Guglielmo Papiri; Stefan Schacht

$CP$ violation in neutral kaon mixing in $D^0\rightarrow K_SK_S$

High Energy Physics - Phenomenology 2026-05-05 v1 High Energy Physics - Experiment

Authors: Yuval Grossman , Guglielmo Papiri , Stefan Schacht

Abstract

We study CP violation induced by neutral kaon mixing in $a_{CP}(D^0 \rightarrow K_S K_S)$ . We show that the contribution from neutral kaon mixing arises only in connection with second-order weak interactions in $D$ decays. We estimate this effect to be at the $10^{-6}$ level, and thus negligible compared to current experimental sensitivity and to the expected contribution from CP violation in the charm sector.

Keywords

hep-ph CP violation neutral kaon mixing D0 decays weak interactions K_S K_S final state

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@article{arxiv.2605.00989,
  title  = {$CP$ violation in neutral kaon mixing in $D^0\rightarrow K_SK_S$},
  author = {Yuval Grossman and Guglielmo Papiri and Stefan Schacht},
  journal= {arXiv preprint arXiv:2605.00989},
  year   = {2026}
}

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14 pages, 1 figure

$CP$ violation in neutral kaon mixing in $D^0\rightarrow K_SK_S$

Abstract

Keywords

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