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

doi:10.1103/PhysRevLett.100.061803

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

Physics and Astronomy

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92 Citations (Scopus)

Abstract

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 language	English
Article number	061803
Journal	Physical Review Letters
Volume	100
Issue number	6
Early online date	1 Feb 2008
DOIs	https://doi.org/10.1103/PhysRevLett.100.061803
Publication status	Published - 1 Feb 2008

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

abstract = "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.",

author = "B Aubert and {Del Amo Sanchez}, P and Christopher Hawkes and Alan Watson",

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AU - Aubert, B

AU - Del Amo Sanchez, P

AU - Hawkes, Christopher

AU - Watson, Alan

PY - 2008/2/1

Y1 - 2008/2/1

N2 - 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.

AB - 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.

U2 - 10.1103/PhysRevLett.100.061803

DO - 10.1103/PhysRevLett.100.061803

M3 - Article

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VL - 100

JO - Physical Review Letters

JF - Physical Review Letters

IS - 6

M1 - 061803

ER -

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

Abstract

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