PLOT-0045 Measurement of the Branching Fraction for B0->K+K-K0 |
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Public Plots or Figures |
Record Created |
August 3, 2003 |
Comments |
Presented at Lepton Photon Conference, 2003 |
Abstract |
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We report on the branching fraction measurement for charmless decays of the neutral B meson into
the three-body K+K-K0 final state using 88.4 million BB pairs created at the PEPII B-meson Factory
at SLAC and collected by the BaBar detector.
We reconstruct events in a decay subchannel K+K-Ks, with Ks->pi+pi-.
A preliminary result for the measurement is
BF(B0->K+K-K0) = ( 23.8 +- 2.3 +- 2.2 )*1E-06
where the first error is statistical and second systematic.
When phiK0 decays are excluded, the branching fraction is ( 19.9 +- 2.1 +- 1.9 )*1E-06.
Using isospin symmetry, and comparing decay rates of B0->K+K-K0 and B+->K+KsKs
we find that the the final state K+K-Ks is dominated by the CP-even
component, which is in agreement with previous Belle's measurement (hep-ex/0208030).
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Revisions and Files |
1 revised August 3, 2003
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04-AUG-2003 |
F on-probCut.eps |
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18.24 |
Fisher discriminant projection of maximum likelihood events with signal probability cut.
Points are data, solid line is the likelihood projection for all events, dashed for the background. |
06-AUG-2003 |
abstract-bad688.txt |
Abstract |
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0.77 |
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04-AUG-2003 |
deltaE on-probCut.eps |
Figure or plot |
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25.39 |
deltaE projection of events used in maximum likelihood fit with signal probability cut. Points are data, solid line is the likelihood projection for all events,dashed for the background. |
06-AUG-2003 |
m12 on-cnc.eps |
Figure or plot |
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27.17 |
Invariant mass of K+K- pairs. All events are represented with the hollow histogram with error bars, hatched histogram is the background extrapolated from side-bands. The small window shows phi mass range. |
06-AUG-2003 |
m13+m23 on-cnc.eps |
Figure or plot |
eps |
20.25 |
Invariant mass of K+Ks and K-Ks pairs (two entries per B0 candidate). Hollow histogram with error bars represents all events, and hatched histogram background events extrapolated from side-bands. |
04-AUG-2003 |
mES-deltaE on cnc SRbands.eps |
Figure or plot |
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41.84 |
mES-deltaE scatter plot with projections to axes. |
04-AUG-2003 |
mES on-probCut.eps |
Figure or plot |
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28.28 |
mES projection of events used in the maximum likelihood fit. A probability cut on signal events is applied to suppress the background. Points are data, solid line is likelihood projection for all events, dashed for background. |
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Submitted To | 2003 International Symposium on Lepton and Photon Interactions at High Energies |
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