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{First observation of the decay $B^0_s \to D^-_s D^+_s$ and measurement of its branching ratio}

Publication ,  Journal Article
Aaltonen, ; T, ; others,
Published in: Phys. Rev. Lett.
2008

We report the observation of the exclusive decay Bs0-->Ds-Ds+ at the 7.5 standard deviation level using 355 pb-1 of data collected by the CDF II detector in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV at the Fermilab Tevatron. We measure the relative branching ratio [script B](Bs0-->Ds-Ds+)/[script B](B0-->D-Ds+) =1.44-0.44+0.48. Using the world average value for [script B](B0-->D-Ds+), we find [script B](Bs0-->Ds-Ds+) =(9.4-4.2+4.4)×10-3. This provides a lower bound DeltaGammasCP/Gammas> =2[script B](Bs0-->Ds-Ds+)>1.2×10-2 at 95% C.L.

Duke Scholars

Published In

Phys. Rev. Lett.

Publication Date

2008

Volume

100

Start / End Page

021803

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Aaltonen, ., T, ., & others, . (2008). {First observation of the decay $B^0_s \to D^-_s D^+_s$ and measurement of its branching ratio}. Phys. Rev. Lett., 100, 021803.
Aaltonen, S., S. T, and S. others. “{First observation of the decay $B^0_s \to D^-_s D^+_s$ and measurement of its branching ratio}.” Phys. Rev. Lett. 100 (2008): 021803.
Aaltonen, S., et al. “{First observation of the decay $B^0_s \to D^-_s D^+_s$ and measurement of its branching ratio}.” Phys. Rev. Lett., vol. 100, 2008, p. 021803.

Published In

Phys. Rev. Lett.

Publication Date

2008

Volume

100

Start / End Page

021803

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences