We present a Dalitz-plot analysis of charmless B± decays to the final state π±π±π∓ using 210 fb-1 of data recorded by the BABAR experiment at √s=10.58 GeV. We measure the branching fractions B(B±→π±π±π∓)=(16.2±1.2±0.9)×10-6 and B(B±→ρ0(770)π±)=(8.8±1.0±0.6-0.7+0.1)×10-6. Measurements of branching fractions for the quasi-two-body decays B±→ρ0(1450)π±, B±→f0(980)π± and B±→f2(1270)π± are also presented. We observe no charge asymmetries for the above modes, and there is no evidence for the decays B±→χc0π±, B±→f0(1370)π± and B±→σπ±.
Amplitude analysis of the decay B±→π±π±π∓
SIMI, GABRIELE;MARGONI, MARTINO;SIMONETTO, FRANCO;STROILI, ROBERTO;VOCI, CESARE;
2005
Abstract
We present a Dalitz-plot analysis of charmless B± decays to the final state π±π±π∓ using 210 fb-1 of data recorded by the BABAR experiment at √s=10.58 GeV. We measure the branching fractions B(B±→π±π±π∓)=(16.2±1.2±0.9)×10-6 and B(B±→ρ0(770)π±)=(8.8±1.0±0.6-0.7+0.1)×10-6. Measurements of branching fractions for the quasi-two-body decays B±→ρ0(1450)π±, B±→f0(980)π± and B±→f2(1270)π± are also presented. We observe no charge asymmetries for the above modes, and there is no evidence for the decays B±→χc0π±, B±→f0(1370)π± and B±→σπ±.
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