BABAR Publications

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CONF-04/025 Measurement of CP Asymmetry in B0-->K+K-K0(S) Decays

Doc Type

Conference Submissions

Record Created

July 22, 2004

SLAC-PUB

SLAC-PUB-10609 No citations

Preprint #

hep-ex/0408076

Abstract

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We present preliminary measurements of the CP asymmetry parameters and CP content in
B0-->K+K-Ks decays, with phiKs events excluded. In a sample of 227M BB pairs collected 
by the BABAR detector at the PEPII B-Factory at SLAC, we find the CP parameters to be 
S = -0.42 +/- 0.17 +/- 0.04 and C =  0.10 +/- 0.14 +/- 0.06,
where the first error is statistical and the second is systematic.
Extracting the fraction of CP -even final states from angular moments
f(CP-even) = 0.89 +/- 0.08 +/- 0.06, and setting C=0, we determine
sin(2beta) = 0.55 +/- 0.22 +/- 0.04 +/- 0.11, where the last error is due to 
uncertainty on the CP content.

Revisions and Files

1 revised July 22, 2004

File Date Thumbnails	File Name	File Type	File Format	File Size (Kb)	Comments
16-AUG-2004	Abstract.txt	Abstract	txt	0.62
16-AUG-2004	BABAR-CONF-04025.pdf	Paper (journal paper or conference submission by BABAR Collaboration)	pdf	222.17	Paper submitted to ICHEP2004. (rnc)
16-AUG-2004	BABAR-CONF-04025.ps.gz	Paper (journal paper or conference submission by BABAR Collaboration)	ps.gz	191.33	Conference paper submitted to ICHEP2004.
16-AUG-2004	P0-P2 mKK.eps	Figure or plot	eps	39.38	Figure 4(upper): Distribution of raw moments ... .
16-AUG-2004	P3-P6 mKK.eps	Figure or plot	eps	31.05	Figure 4(lower): Distribution of raw moments ....
16-AUG-2004	SPfeven mKK.eps	Figure or plot	eps	40.67	Figure 2: S-, P-wave amplitudes and CP-even fraction as a function of K+K- inv. mass.
16-AUG-2004	deltaE run1+2+3+4 proj lkCut.eps	Figure or plot	eps	35.50	Figure 1b: DeltaE projection plot.
16-AUG-2004	deltat run1+2+3+4 proj lkCut.eps	Figure or plot	eps	33.26	Figure 3a,3b: Deltat distribution for B0 abd B0bar tags. Figure 3c: Raw asymmetry for B0, B0bar tags.
16-AUG-2004	mES run1+2+3+4 proj lkCut.eps	Figure or plot	eps	33.69	Figure 1a: mES projection plot.

Submitted To	2004 International Conference on High Energy Physics