Measurement of Bs0Ds(*)+Ds(*) Branching Ratios

T. Aaltonen et al. (CDF Collaboration)
Phys. Rev. Lett. 108, 201801 – Published 14 May 2012

Abstract

The decays Bs0Ds(*)+Ds(*) are reconstructed in a data sample corresponding to an integrated luminosity of 6.8fb1 collected by the CDF II detector at the Tevatron pp¯ collider. All decay modes are observed with a significance of more than 10σ, and we measure the Bs0 production rate times Bs0Ds(*)+Ds(*) branching ratios relative to the normalization mode B0Ds+Dto be 0.183±0.021±0.017 for Bs0Ds+Ds, 0.424±0.046±0.035 for Bs0Ds*±Ds, 0.654±0.072±0.065 for Bs0Ds*+Ds*, and 1.261±0.095±0.112 for the inclusive decay Bs0Ds(*)+Ds(*), where the uncertainties are statistical and systematic. These results are the most precise single measurements to date and provide important constraints for indirect searches for nonstandard model physics in Bs0 mixing.

  • Figure
  • Received 26 February 2012

DOI:https://doi.org/10.1103/PhysRevLett.108.201801

© 2012 American Physical Society

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Vol. 108, Iss. 20 — 18 May 2012

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