Measurement of the branching fraction and search for
Sep, 199618 pages
Published in:
- Phys.Rev.Lett. 77 (1996) 5176-5181
Report number:
- FERMILAB-PUB-96-300-E,
- CDF-PUB-BOTTOM-CDFR-3690,
- FERMILAB-PUB-98-173-EC
Experiments:
View in:
Citations per year
Abstract: (APS)
We report on a measurement of the branching fraction of the Cabibbo-suppressed decay Bu+→J/ψπ+, where J/ψ→μ+μ−. The data were collected by the Collider Detector at Fermilab during 1992–1995 and correspond to an integrated luminosity of 110pb−1 in p¯p collisions at s=1.8TeV. A signal of 28−9+10 events is observed and we determine the ratio of branching fractions B(Bu+→J/ψπ+)/B(Bu+→J/ψK+) to be [5.0−1.7+1.9(stat)±0.1(syst)]%. Using the world average value for B(Bu+→J/ψK+), we calculate the branching fraction B(Bu+→J/ψπ+) to be (5.0−1.9+2.1)×10−5. We also search for the decay Bc+→J/ψπ+ and report a 95% confidence level limit on σ(Bc+)B(Bc+→J/ψπ+)/σ(Bu+)B(Bu+→J/ψK+) as a function of the Bc+ lifetime.- anti-p p: colliding beams
- anti-p p: inclusive reaction
- B+: hadroproduction
- B+: hadronic decay
- B+: branching ratio
- postulated particle: B/c
- B/c: branching ratio
- J/psi(3100)
- channel cross section: branching ratio
- B/c: lifetime
References(21)
Figures(0)