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.

Search for CP violation in the decays D-0 -> K-K+ and D-0 ->pi(-)pi(+)

BIANCHI, Fabrizio;GAMBA, Diego;PELLICCIONI, Mario;
2008-01-01

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.
2008
1
6
10
B. Aubert; M. Bona; D. Boutigny; Y. Karyotakis; J. P. Lees; V. Poireau; X. Prudent; V. Tisserand; A. Zghiche; J. Garra Tico; E. Grauges; L. Lopez; A. ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/44886
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