First Observation of B̅ s0→Ds ± K∓ and Measurement of the Ratio of Branching Fractions B(B̅ s0→Ds ± K∓)/B(B̅ s0→Ds+π-)
Publication
, Journal Article
Aaltonen, T; others,
Published in: Phys. Rev. Lett.
2009
A combined mass and particle identification fit is used to make the first observation of the decay B̅ s0→Ds ± K∓ and measure the branching fraction of B̅ s0→Ds ± K∓ relative to B̅ s0→Ds+π-. This analysis uses 1.2 fb-1 integrated luminosity of pp̅ collisions at sqrt[s]=1.96 TeV collected with the CDF II detector at the Fermilab Tevatron collider. We observe a B̅ s0→Ds ± K∓ signal with a statistical significance of 8.1σ and measure B(B̅ s0→Ds ± K∓)/B(B̅ s0→Ds+π-)=0.097 ± 0.018(stat) ± 0.009(syst).
Duke Scholars
Published In
Phys. Rev. Lett.
Publication Date
2009
Volume
103
Issue
19
Start / End Page
191802
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences
Citation
APA
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ICMJE
MLA
NLM
Aaltonen, T., & others, . (2009). First Observation of B̅ s0→Ds ± K∓ and Measurement of the Ratio of Branching Fractions B(B̅ s0→Ds ± K∓)/B(B̅ s0→Ds+π-). Phys. Rev. Lett., 103(19), 191802.
Aaltonen, T., and T. others. “First Observation of B̅ s0→Ds ± K∓ and Measurement of the Ratio of Branching Fractions B(B̅ s0→Ds ± K∓)/B(B̅ s0→Ds+π-).” Phys. Rev. Lett. 103, no. 19 (2009): 191802.
Aaltonen T, others. First Observation of B̅ s0→Ds ± K∓ and Measurement of the Ratio of Branching Fractions B(B̅ s0→Ds ± K∓)/B(B̅ s0→Ds+π-). Phys Rev Lett. 2009;103(19):191802.
Aaltonen, T., and T. others. “First Observation of B̅ s0→Ds ± K∓ and Measurement of the Ratio of Branching Fractions B(B̅ s0→Ds ± K∓)/B(B̅ s0→Ds+π-).” Phys. Rev. Lett., vol. 103, no. 19, 2009, p. 191802.
Aaltonen T, others. First Observation of B̅ s0→Ds ± K∓ and Measurement of the Ratio of Branching Fractions B(B̅ s0→Ds ± K∓)/B(B̅ s0→Ds+π-). Phys Rev Lett. 2009;103(19):191802.
Published In
Phys. Rev. Lett.
Publication Date
2009
Volume
103
Issue
19
Start / End Page
191802
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences