Search for CP violation in the decays $D^0 \to K^ - K^ + $ and $D^0 \to \pi^ - \pi^ + $

The BaBar Collaboration

doi:10.1103/PhysRevLett.100.061803

Search for CP violation in the decays $D^0 \to K^ - K^ + $ and $D^0 \to \pi^ - \pi^ + $

The BaBar Collaboration

Research output: Contribution to journal › Article › peer-review

Abstract

We measure time-integrated CP-violating asymmetries of neutral charmed mesons in the modes D0→K−K+ and D0→π−π+ with the highest precision to date by using D0→K−π+ decays to correct detector asymmetries. An analysis of 385.8 fb−1 of data collected with the BABAR detector yields values of aKKCP=(0.00±0.34(stat)±0.13(syst))% and aππCP=(−0.24±0.52(stat)±0.22(syst))%, which agree with standard model predictions.

Original language	English
Article number	061803
Number of pages	7
Journal	Phys. Rev. Lett.
Volume	100
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.100.061803
Publication status	Published - 2008

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title = "Search for CP violation in the decays $D^0 \to K^ - K^ + $ and $D^0 \to \pi^ - \pi^ + $",

abstract = "We measure time-integrated CP-violating asymmetries of neutral charmed mesons in the modes D0→K−K+ and D0→π−π+ with the highest precision to date by using D0→K−π+ decays to correct detector asymmetries. An analysis of 385.8 fb−1 of data collected with the BABAR detector yields values of aKKCP=(0.00±0.34(stat)±0.13(syst))% and aππCP=(−0.24±0.52(stat)±0.22(syst))%, which agree with standard model predictions.",

author = "David Bailey and Nicholas Barlow and Roger Barlow and Yaw Chia and Christina Edgar and George Lafferty and Timothy West and Jong Yi and {The BaBar Collaboration}",

year = "2008",

doi = "10.1103/PhysRevLett.100.061803",

language = "English",

volume = "100",

journal = "Phys. Rev. Lett.",

issn = "1079-7114",

publisher = "American Physical Society",

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TY - JOUR

T1 - Search for CP violation in the decays $D^0 \to K^ - K^ + $ and $D^0 \to \pi^ - \pi^ + $

AU - Bailey, David

AU - Barlow, Nicholas

AU - Barlow, Roger

AU - Chia, Yaw

AU - Edgar, Christina

AU - Lafferty, George

AU - West, Timothy

AU - Yi, Jong

AU - The BaBar Collaboration

PY - 2008

Y1 - 2008

N2 - We measure time-integrated CP-violating asymmetries of neutral charmed mesons in the modes D0→K−K+ and D0→π−π+ with the highest precision to date by using D0→K−π+ decays to correct detector asymmetries. An analysis of 385.8 fb−1 of data collected with the BABAR detector yields values of aKKCP=(0.00±0.34(stat)±0.13(syst))% and aππCP=(−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 D0→K−K+ and D0→π−π+ with the highest precision to date by using D0→K−π+ decays to correct detector asymmetries. An analysis of 385.8 fb−1 of data collected with the BABAR detector yields values of aKKCP=(0.00±0.34(stat)±0.13(syst))% and aππCP=(−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

SN - 1079-7114

VL - 100

JO - Phys. Rev. Lett.

JF - Phys. Rev. Lett.

IS - 6

M1 - 061803

ER -

Search for CP violation in the decays $D^0 \to K^ - K^ + $ and $D^0 \to \pi^ - \pi^ + $

Abstract

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