Search for Cp Violation in the Decays D^{0}→K^{-}K^{+} and D^{0}→Π^{-}Π^{+}

B Aubert, P Del Amo Sanchez, Christopher Hawkes, Alan Watson

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92 Citations (Scopus)


We measure time-integrated CP-violating asymmetries of neutral charmed mesons in the modes D-0 -> K-K+ and D-0 ->pi(-)pi(+) with the highest precision to date by using D-0 -> K-pi(+) decays to correct detector asymmetries. An analysis of 385.8 fb(-1) of data collected with the BABAR detector yields values of a(CP)(KK)=(0.00 +/- 0.34(stat)+/- 0.13(syst))% and a(CP)(pi pi)=(-0.24 +/- 0.52(stat)+/- 0.22(syst))%, which agree with standard model predictions.
Original languageEnglish
Article number061803
JournalPhysical Review Letters
Issue number6
Early online date1 Feb 2008
Publication statusPublished - 1 Feb 2008


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