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Título : Measurement of the Bs0 Lifetime in Fully and Partially Reconstructed Bs0→Ds-(ϕπ-)X Decays in p̅ p Collisions at √s=1.96  TeV
Autor : Aaltonen, T., Álvarez González, B., Casal, Bruno, Cuevas, Javier, Gómez, G., Palencia, Enrique, Rodrigo, Teresa, Ruiz Jimeno, Alberto, Scodellaro, Luca, Vila, Iván, Vilar, Rocío
Fecha de publicación : Dec-2011
Editor: American Physical Society
Resumen: 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.
Descripción : 7 páginas, 2 figuras, 1 tabla.-- PACS numbers: 14.40.Nd, 13.25.Hw.-- CDF Collaboration: et al.
Versión del editor: http://dx.doi.org/10.1103/PhysRevLett.107.272001
URI : http://hdl.handle.net/10261/46227
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.107.272001
Citación : Physical Review Letters 107(27): 272001 (2011)
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