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Open Access item Measurement of the Bs0 Lifetime in Fully and Partially Reconstructed Bs0→Ds-(ϕπ-)X Decays in p̅ p Collisions at √s=1.96  TeV

Authors:Aaltonen, T.
Álvarez González, B.
Casal, Bruno
Cuevas, Javier
Gómez, G.
Palencia, Enrique
Rodrigo, Teresa
Ruiz Jimeno, Alberto
Scodellaro, Luca
Vila, Iván
Vilar, Rocío
Issue Date:Dec-2011
Publisher:American Physical Society
Citation:Physical Review Letters 107(27): 272001 (2011)
Abstract:We present a measurement of the Bs0 lifetime in fully and partially reconstructed Bs0→Ds-(ϕπ-)X decays in 1.3  fb-1 collected in pp̅ collisions at √s=1.96  TeV by the CDF II detector at the Fermilab Tevatron. We measure τ(Bs0)=1.518±0.041(stat)±0.027(syst)  ps. The ratio of this result and the world average B0 lifetime yields τ(Bs0)/τ(B0)=0.99±0.03, which is in agreement with recent theoretical predictions.
Description:7 páginas, 2 figuras, 1 tabla.-- PACS numbers: 14.40.Nd, 13.25.Hw.-- CDF Collaboration: et al.
Publisher version (URL):http://dx.doi.org/10.1103/PhysRevLett.107.272001
E-ISSNmetadata.dc.identifier.doi = DOI:1079-7114
Appears in Collections:(IFCA) Artículos

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