Measurement of the time-integrated CP asymmetry in D0 → KS0KS0decays

The Lhcb Collaboration

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24 Scopus citations


Abstract: The time-integrated CP asymmetry in the decay D0→ KS0KS0is measured using 3 fb−1of proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The flavour of the D0meson is determined by use of the decay D*+→ D0π+and its charge conjugate mode. The result is ACP=−0.029±0.052±0.022, where the first uncertainty is statistical and the second systematic. The result is consistent with Standard Model expectations and improves the uncertainty with respect to the only previous measurement of this quantity by more than a factor of three.

Original languageEnglish (US)
Article number55
JournalJournal of High Energy Physics
Issue number10
StatePublished - Oct 1 2015


  • CP violation
  • Charm physics
  • Flavor physics
  • Hadron-Hadron Scattering

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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