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

This is the WEB page summarizing the blessed result for the measurement of the ratio of branching fractions for Bs mesons relative to B0 mesons. The measurement is done on the 243 pb-1 data set and have been blessed in the B Physics Meeting on Thursday April 28, 2005.

BR(Bs &rarr Ds3 &pi ) / BR(B0 &rarr D+3&pi-) = 1.17 ± 0.18 ± 0.11 ± 0.30(BR) ± 0.11(PR)
fs/fd × BR(Bs &rarr Ds3 &pi ) / BR(B0 &rarr D+3&pi-) = 0.315 ± 0.048 ± 0.029 ± 0.082(BR)

There is a complete version of the results: ps.

Below the eps versions of all figures meant for downloads.

    Yields:

        Fig.   1        Bd -> D+ 3pi Mass
        Fig.   2        Bs  -> Ds 3pi Mass

    CDF two track trigger

       Fig.   3        Trigger sketch

    Monte Carlo background study

       Fig.  4        Bd continuum physics background
       Fig.  5        Bs continuum physics background
         Fig.  6        Bs -> Ds* 3pi partially reconstructed decays
         Fig.  7        Bs -> Ds 2pi K Cabibbo suppressed decays
         Fig.  8        Bs continuum background decomposed

    Fitting templates

       Fig.  9        Bd signal template
       Fig. 10       Bd -> D* 3pi reflection template    
       Fig. 11       Bd continuum background template              
       Fig. 12       Bd -> D 2pi K Cabibbo template
    
       Fig. 13       Bs signal template
       Fig. 14       Bs -> Ds* 3pi reflection template    
       Fig. 15       Bs continuum background template              
       Fig. 16       Bs -> Ds 2pi K Cabibbo template