Measurement of the B[subscript s][superscript 0] Lifetime in Fully and Partially Reconstructed B[subscript s][superscript 0]→D[subscript s][superscript -](ϕπ[superscript -])X Decays in p̅ p Collisions at √s=1.96 TeV
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Aaltonen-2011-Measurement of the B0s.pdf
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Author(s)
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Paus, Christoph M. E.
Bauer, Gerry P
Makhoul, Khaldoun
Alternative Title
Measurement of the Bs0 Lifetime in Fully and Partially Reconstructed Bs0→Ds-(ϕπ-)X Decays in p̅ p Collisions at √s=1.96 TeV
Date Issued
December 2011
Journal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Aaltonen, T. et al. “Measurement of the B_{s}^{0} Lifetime in Fully and Partially Reconstructed B_{s}^{0}→D_{s}^{-}(ϕπ^{-})X Decays in P[over ¯]p Collisions at Sqrt[s]=1.96 TeV.” Physical Review Letters 107.27 (2011): n. pag. Web. 24 Feb. 2012. © 2011 American Physical Society
Version
Final published version
Abstract
We present a measurement of the B[subscript s][superscript 0] lifetime in fully and partially reconstructed B[subscript s][superscript 0]→D[subscript s][superscript -](ϕπ[superscript -])X decays in 1.3 fb[superscript -1] collected in pp̅ collisions at √s=1.96 TeV by the CDF II detector at the Fermilab Tevatron. We measure τ(B[subscript s][superscript 0])=1.518±0.041(stat)±0.027(syst) ps. The ratio of this result and the world average B[superscript 0] lifetime yields τ(B[subscript s][superscript 0])/τ(B[superscript 0])=0.99±0.03, which is in agreement with recent theoretical predictions.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.107.272001
