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Measurement of the ratios of branching fractions B(B-s(0)-> D-s(-)pi(+))/B(B-0 -> D-pi(+)) and B(B+->(D)over-bar(0)pi(+))/B(B-0 -> D-pi(+))

Abulencia, A; Acosta, D; Adelman, J; Affolder, T; Akimoto, T; Albrow, MG; Ambrose, D; ... CDF Collaboration; + view all (2006) Measurement of the ratios of branching fractions B(B-s(0)-> D-s(-)pi(+))/B(B-0 -> D-pi(+)) and B(B+->(D)over-bar(0)pi(+))/B(B-0 -> D-pi(+)). PHYS REV LETT , 96 (19) , Article 191801. 10.1103/PhysRevLett.96.191801. Green open access

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Abstract

We report an observation of the decay B-s(0)-> D-s(-)pi(+) in p (p) over bar collisions at root s = 1.96 TeV using 115 pb(-1) of data collected by the CDF II detector at the Fermilab Tevatron. We observe 83 +/- 11(stat) B-s(0)-> D-s(-)pi(+) candidates, representing a large increase in statistics over previous measurements and the first observation of this decay at a p (p) over bar collider. We present the first measurement of the relative branching fraction B(B-s(0)-> D-s(-)pi(+))/B(B-0 -> D-pi(+))=1.32 +/- 0.18(stat)+/- 0.38(syst). We also measure B(B+->(D) over bar (0)pi(+))/B(B-0 -> D-pi(+))=1.97 +/- 0.10(stat)+/- 0.21(syst), which is consistent with previous measurements.

Type: Article
Title: Measurement of the ratios of branching fractions B(B-s(0)-> D-s(-)pi(+))/B(B-0 -> D-pi(+)) and B(B+->(D)over-bar(0)pi(+))/B(B-0 -> D-pi(+))
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.96.191801
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.96.191801
Language: English
Additional information: © 2006 The American Physical Society
Keywords: COLLISIONS, PHYSICS, DECAYS
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery-pp.ucl.ac.uk/id/eprint/131775
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