We present a measurement of the B-s(0) lifetime in fully and partially reconstructed B-s(0) -> D-s(-)(phi pi(-))X decays in 1.3 fb(-1) collected in p (p) over bar collisions at root s = 1.96 Tev by the CDF II detector at the Fermilab Tevatron. We measure tau(B-s(0)) = (1.518 +/- 0.041(stat) +/- 0.027(syst)) ps. The ratio of this result and the world average B-0 lifetime tau(B-s(0))/tau(B-0) = 99 +/- 0.03, which is in agreement with recent theoretical predictions.

Aaltonen, T., Álvarez González, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., et al. (2011). Measurement of the Bs0 Lifetime in Fully and Partially Reconstructed Bs → Ds0 (φπ-)X Decays in (p)over-barp Collisions at √s 1.96 TeV. PHYSICAL REVIEW LETTERS, 107(27), 272001-1-272001-7 [10.1103/PhysRevLett.107.272001].

Measurement of the Bs0 Lifetime in Fully and Partially Reconstructed Bs → Ds0 (φπ-)X Decays in (p)over-barp Collisions at √s 1.96 TeV

BARRIA, PATRIZIA;A. Cerri;GAROSI, PAOLA;RUFFINI, FABRIZIO;SCRIBANO, ANGELO;SQUILLACIOTI, PAOLA;TURINI, NICOLA;
2011-01-01

Abstract

We present a measurement of the B-s(0) lifetime in fully and partially reconstructed B-s(0) -> D-s(-)(phi pi(-))X decays in 1.3 fb(-1) collected in p (p) over bar collisions at root s = 1.96 Tev by the CDF II detector at the Fermilab Tevatron. We measure tau(B-s(0)) = (1.518 +/- 0.041(stat) +/- 0.027(syst)) ps. The ratio of this result and the world average B-0 lifetime tau(B-s(0))/tau(B-0) = 99 +/- 0.03, which is in agreement with recent theoretical predictions.
2011
Aaltonen, T., Álvarez González, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., et al. (2011). Measurement of the Bs0 Lifetime in Fully and Partially Reconstructed Bs → Ds0 (φπ-)X Decays in (p)over-barp Collisions at √s 1.96 TeV. PHYSICAL REVIEW LETTERS, 107(27), 272001-1-272001-7 [10.1103/PhysRevLett.107.272001].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/21094
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