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.

A., A., D., A., J., A., T., A., T., A., M. G., A., et al. (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(+)). PHYSICAL REVIEW LETTERS, 96(19) [10.1103/PhysRevLett.96.191801].

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(+))

PAOLETTI, RICCARDO;
2006-01-01

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.
2006
A., A., D., A., J., A., T., A., T., A., M. G., A., et al. (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(+)). PHYSICAL REVIEW LETTERS, 96(19) [10.1103/PhysRevLett.96.191801].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/39153
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