Measurement of the Ratio of Branching Fractions Bd -> Ds D+ / Bd -> D+ 3 pi

Measurement of the Ratio of Branching Fractions
Bd -> Ds D+ / Bd -> D+ 3π
where Ds -> φ π, K^* K and 3π
This is the WEB page summarizing the blessed result for the measurement of the ratio of branching fractions. The measurement is done on the 355 pb^-1 data set and have been blessed in the B Physics Meeting on Thursday Jan 12, 2006. This is an update for our previous measurement done with 243 pb^-1. In this analysis we also measure the branching of the modes with exited D-mesons in the final state.

BR(B⁰ → D_sD+ ) / BR(B⁰ → D⁺3π^-) = 1.99 ą 0.13 ą 0.11 ą 0.44 (BRφ π)ą 0.08(BR)
BR(B⁰ → D_s^* D+ ) / BR(B⁰ → D_s D+ ) = 0.9 ą 0.2 ą 0.1
BR(B⁰ → D_s D+ ^*) / BR(B⁰ → D_s D+ ) = 1.5 ą 0.4 ą 0.1
BR(B⁰ → D_s^* D+^* ) / BR(B⁰ → D_s D+ ) = 2.6 ą 0.5 ą 0.2

Reconstructed Bd -> DsD+ where Ds -> φ π

There is a complete version of the results: ps.

Below the eps versions of all figures meant for downloads.

    Yields:

        Fig.  1        Bd -> D+ 3 π Mass

        Fig.  2        Bd -> Ds D+ (φ π) Mass

        Fig.  3        Bd -> Ds D+ (K^* K) Mass

        Fig.  4        Bd -> Ds D+ (3 π) Mass

BR(B0 → DsD+ ) / BR(B0 → D+3π-) = 1.99 ą 0.13 ą 0.11 ą 0.44 (BRφ π)ą 0.08(BR) BR(B0 → Ds* D+ ) / BR(B0 → Ds D+ ) = 0.9 ą 0.2 ą 0.1 BR(B0 → Ds D+ *) / BR(B0 → Ds D+ ) = 1.5 ą 0.4 ą 0.1 BR(B0 → Ds* D+* ) / BR(B0 → Ds D+ ) = 2.6 ą 0.5 ą 0.2

BR(B⁰ → D_sD+ ) / BR(B⁰ → D⁺3π^-) = 1.99 ą 0.13 ą 0.11 ą 0.44 (BRφ π)ą 0.08(BR)
BR(B⁰ → D_s^* D+ ) / BR(B⁰ → D_s D+ ) = 0.9 ą 0.2 ą 0.1
BR(B⁰ → D_s D+ ^) / BR(B⁰ → D_s D+ ) = 1.5 ą 0.4 ą 0.1
BR(B⁰ → D_s^ D+^* ) / BR(B⁰ → D_s D+ ) = 2.6 ą 0.5 ą 0.2