Measurement of the ratio of branching fractions B(B(+/-) -> J/psi pi(+/-))/B(B(+/-) -> J/psi K(+/-)
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Measurement of the ratio of branching fractions B(B(+/-) -> J/psi pi(+/-))/B(B(+/-) -> J/psi K(+/-)
We report a measurement of the ratio of branching fractions of the decays B(+/-) -> J/psi pi(+/-) and B(+/-) -> J/psi K(+/-) using the CDF II detector at the Fermilab Tevatron Collider. The signal from the Cabbibo-suppressed B(+/-)-> J/psi pi(+/-) decay is separated from B(+/-) -> J/psi K(+/-) using the B(+/-)-> J/psi K(+/-) invariant mass distribution and the kinematical differences of the hadron track in the two decay modes. From a sample of 220 pb(-1) of p (p) over bar collisions at root s = 1.96 TeV, we observe 91 +/- 15 B(+/-) -> J/psi pi(+/-) events together with 1883 +/- 34 B(+/-) -> J/psi K(+/-)events. The ratio of branching fractions is found to be B(B(+/-)-> J/psi pi(+/-))/B(B(+/-) -> J/psi K(+/-)) = (4.86 +/- 0.82(stat) +/- 0.15(syst))%.
United States, Italy
- Sapienza University of Rome Italy
- Roma Tre University Italy
- University of Florence Italy
- University of Pavia Italy
- University of Pisa Italy
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These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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