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Search for CP violation in the decays D-0 -> K-K+ and D-0 ->pi(-)pi(+)
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BABAR Collaboration (Including: Harrison, P. F., Ilić, Jelena, Latham, Thomas and Mohanty, G. B.). (2008) Search for CP violation in the decays D-0 -> K-K+ and D-0 ->pi(-)pi(+). Physical Review Letters, Volume 100 (Number 6). Article No. 061803 . doi:10.1103/PhysRevLett.100.061803 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.100.061803
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.
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