8-13 August 2011
Rhode Island Convention Center
US/Eastern timezone

Updated Measurement of B(Bs -> Ds(*)+Ds(*)-) and Determination of Delta Gamma_CP

11 Aug 2011, 11:14
554 (Rhode Island Convention Center)


Rhode Island Convention Center

Parallel contribution Heavy Flavor Physics (bottom, charm, tau) Heavy Flavor Physics


Ms Sevda Esen (University of Cincinnati)


Using fully reconstructed $B_{s}$ mesons, we measure the branching fractions for the decays of $B_s \to D_s^{(*)+}D_s^{(*)-}$ exclusively. Assuming these decay modes saturate decays to CP-even final states, the branching fraction determines the relative width difference between the $CP$-odd and $CP$-even $B_s$ states. The results are based on a data sample collected with the Belle detector at the $\Upsilon(5S)$ resonance with an integrated luminosity of 122 fb$^{-1}$ at the KEKB asymmetric-energy $e^+ e^-$ collider.

Primary author

Ms Sevda Esen (University of Cincinnati)

Presentation Materials