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Measurement of B[subscript s][superscript 0]→D[subscript s](*)[superscript +]D[subscript s](*)[superscript -] Branching Ratios

Author(s)
Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Paus, Christoph M. E.
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Abstract
The decays B[subscript s][superscript 0]→D[subscript s](*)[superscript +]Ds(*)[superscript -] are reconstructed in a data sample corresponding to an integrated luminosity of 6.8  fb[superscript -1] collected by the CDF II detector at the Tevatron pp̅ collider. All decay modes are observed with a significance of more than 10σ, and we measure the B[subscript s][superscript 0] production rate times B[subscript s][superscript 0]→D[subscript s](*)[superscript +]D[subscript s](*)[superscript -] branching ratios relative to the normalization mode B[superscript 0]→D[subscript s][superscript +]D[superscript -]to be 0.183±0.021±0.017 for B[subscript s][superscript 0]→D[subscript s][superscript +]D[subscript s][superscript -], 0.424±0.046±0.035 for B[subscript s][superscript 0]→D[subscript s][superscript *]±D[subscript s][superscript ±], 0.654±0.072±0.065 for B[subscript s][superscript 0]→D[subscript s][superscript *+]D[subscript s][superscript *-], and 1.261±0.095±0.112 for the inclusive decay B[subscript s][superscript 0]→D[subscript s](*)[superscript +]Ds(*)[superscript -], 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 B[subscript s][superscript 0] mixing.
Date issued
2012-05
URI
http://hdl.handle.net/1721.1/71613
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
T. Aaltonen et al. (CDF Collaboration). "Measurement of B[subscript s][superscript 0]→D[subscript s](*)[superscript +]D[subscript s](*)[superscript -] Branching Ratios" Physical Review Letters 108, 201801 (2012). © 2012 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114

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