The Standard Model confronts CP violation in D 0 → π + π − and D 0 → K + K −

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Measurement of the CP Violation Parameter A_{Γ} in D^{0}→K^{+}K^{-} and D^{0}→π^{+}π^{-} Decays.

Asymmetries in the time-dependent rates of D^{0}→K^{+}K^{-} and D^{0}→π^{+}π^{-} decays are measured in a pp collision data sample collected with the LHCb detector during LHC Run 1, corresponding to an integrated luminosity of 3  fb^{-1}. The asymmetries in effective decay widths between D^{0} and D[over ¯]^{0} decays, sensitive to indirect CP violation, are measured to be A_{Γ}(K^{+}K^{-})=(-0...

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ژورنال

عنوان ژورنال: Journal of High Energy Physics

سال: 2012

ISSN: 1029-8479

DOI: 10.1007/jhep05(2012)140