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Measurement of the B±ρ±π0 branching fraction and direct CP asymmetry

B. Aubert et al. (BABAR Collaboration)
Phys. Rev. D 75, 091103(R) – Published 31 May 2007

Abstract

We present improved measurements of the branching fraction and CP asymmetry for the process B±ρ±π0. The data sample corresponding to 211fb1 comprises 232×106 Υ(4S)BB¯ decays collected with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. The yield and CP asymmetry are measured using an extended maximum likelihood fitting method. The branching fraction and CP asymmetry are found to be B(B±ρ±π0)=[10.2±1.4(stat)±0.9(syst)]×106 and ACP(B±ρ±π0)=0.01±0.13(stat)±0.02(syst).

  • Figure
  • Received 22 January 2007

DOI:https://doi.org/10.1103/PhysRevD.75.091103

©2007 American Physical Society

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Vol. 75, Iss. 9 — 1 May 2007

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