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Observation of B+ηρ+ and search for B0 decays to ηη, ηπ0, ηπ0, and ωπ0

B. Aubert et al. (BABAR Collaboration)
Phys. Rev. D 78, 011107(R) – Published 28 July 2008

Abstract

We present measurements of branching fractions for five B-meson decays to two-body charmless final states. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 459×106 BB¯ pairs. The results for branching fractions are, in units of 106 (upper limits at 90% C.L.), B(B+ηρ+)=9.9±1.2±0.8, B(B0ηη)=0.5±0.4±0.1(<1.2), B(B0ηπ0)=0.9±0.4±0.1(<1.5), B(B0ηπ0)=0.9±0.4±0.1(<1.5), and B(B0ωπ0)=0.07±0.26±0.02(<0.5). The first error quoted is statistical and the second systematic. For the ηρ+ mode, we measure the charge asymmetry Ach(B+ηρ+)=0.13±0.11±0.02.

  • Figure
  • Figure
  • Received 16 April 2008

DOI:https://doi.org/10.1103/PhysRevD.78.011107

©2008 American Physical Society

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Vol. 78, Iss. 1 — 1 July 2008

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