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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

Author(s)
Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Paus, Christoph M. E.; Bauer, Gerry P; Makhoul, Khaldoun
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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
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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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.
Date issued
2011-12
URI
http://hdl.handle.net/1721.1/69193
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
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
ISSN
0031-9007
1079-7114

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