Measurements of the coherence factor RK3π , the average strong-phase difference δDK3π and mean amplitude ratio rDK3π for the decay D→K−π+π+π− are presented. These parameters are important inputs to the determination of the unitarity triangle angle γ in B−→DK− decays, where D designates a superposition of D0 and D¯0 mesons decaying to a common final state. The results are based on a combined fit to observables obtained from a re-analysis of the CLEO-c ψ(3770) data set and those measured in a D0D¯0 mixing study performed by the LHCb Collaboration.
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"title": "Improved determination of the D \u2192 K \u2212 \u03c0 + \u03c0 + \u03c0 \u2212 coherence factor and associated hadronic parameters from a combination of e+e\u2212\u2192\u03c8(3770)\u2192cc\u00af and pp\u2192cc\u00afX data"
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"value": "Measurements of the coherence factor RK3\u03c0 , the average strong-phase difference \u03b4DK3\u03c0 and mean amplitude ratio rDK3\u03c0 for the decay D\u2192K\u2212\u03c0+\u03c0+\u03c0\u2212 are presented. These parameters are important inputs to the determination of the unitarity triangle angle \u03b3 in B\u2212\u2192DK\u2212 decays, where D designates a superposition of D0 and D\u00af0 mesons decaying to a common final state. The results are based on a combined fit to observables obtained from a re-analysis of the CLEO-c \u03c8(3770) data set and those measured in a D0D\u00af0 mixing study performed by the LHCb Collaboration."
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