We present a Dalitz plot analysis of charmless B± decays to the final state π±π±π using a sample of (465±5) ×106 BB̄ pairs collected by the BABAR experiment at s=10.58GeV. We measure the branching fractions B(B±→π±π±π)= (15.2±0.6±1.2±0.4)×10-6, B(B±→ρ0(770) π±)=(8.1±0.7±1.2-1.1+0.4)×10-6, B(B±→f2(1270)π±)=(1.57±0.42±0.16-0.19+0.53) ×10-6, and B(B±→π±π±πnonresonant)=(5. 3±0.7±0.6-0.5+1.1)×10-6, where the uncertainties are statistical, systematic, and model-dependent, respectively. Measurements of branching fractions for the modes B±→ρ0(1450)π± and B±→f0(1370)π± are also presented. We observe no significant direct CP asymmetries for the above modes, and there is no evidence for the decays B±→f0(980)π±, B±→χc0π ±, or B±→χc2π±. © 2009 The American Physical Society.

Aubert, B., Karyotakis, Y., Lees, J., Poireau, V., Prencipe, E., Prudent, X., et al. (2009). Dalitz plot analysis of B±→π±π±π decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 79(7), 1-15 [10.1103/PhysRevD.79.072006].

Dalitz plot analysis of B±→π±π±π decays

PATRIGNANI, CLAUDIA;
2009

Abstract

We present a Dalitz plot analysis of charmless B± decays to the final state π±π±π using a sample of (465±5) ×106 BB̄ pairs collected by the BABAR experiment at s=10.58GeV. We measure the branching fractions B(B±→π±π±π)= (15.2±0.6±1.2±0.4)×10-6, B(B±→ρ0(770) π±)=(8.1±0.7±1.2-1.1+0.4)×10-6, B(B±→f2(1270)π±)=(1.57±0.42±0.16-0.19+0.53) ×10-6, and B(B±→π±π±πnonresonant)=(5. 3±0.7±0.6-0.5+1.1)×10-6, where the uncertainties are statistical, systematic, and model-dependent, respectively. Measurements of branching fractions for the modes B±→ρ0(1450)π± and B±→f0(1370)π± are also presented. We observe no significant direct CP asymmetries for the above modes, and there is no evidence for the decays B±→f0(980)π±, B±→χc0π ±, or B±→χc2π±. © 2009 The American Physical Society.
2009
Aubert, B., Karyotakis, Y., Lees, J., Poireau, V., Prencipe, E., Prudent, X., et al. (2009). Dalitz plot analysis of B±→π±π±π decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 79(7), 1-15 [10.1103/PhysRevD.79.072006].
Aubert, B; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.; Tico, J. Garra; Grauges, E.; Lopez, L.; Palano, A.; Papp...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/545481
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