Searches for B0 Decays to Combinations of Two Charmless Isoscalar Mesons

Aubert, B. et al. (2004) Searches for B0 Decays to Combinations of Two Charmless Isoscalar Mesons. Physical Review Letters, 93 (18). p. 181806. ISSN 0031-9007

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Abstract

We search for B meson decays into two-body combinations of η,η′,ω, and ϕ mesons from 89×106 BB̅ pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC. We find the branching fraction B(B0→ηω)=(4.0-1.2+1.3±0.4)×10-6 with a significance of 4.3σ. For the other decay modes we set the following 90% confidence level upper limits on the branching fractions, in units of 10-6: B(B0→ηη)<2.8, B(B0→ηη′)<4.6, B(B0→η′η′)<10, B(B0→η′ω)<2.8, B(B0→ηϕ)<1.0, B(B0→η′ϕ)<4.5, and B(B0→ϕϕ)<1.5.

Item Type:	Article
Subjects:	Q Science > QC Physics
Schools:	School of Applied Sciences
Depositing User:	Sharon Beastall
Date Deposited:	07 Apr 2011 07:43
Last Modified:	07 Apr 2011 07:43
URI:	http://eprints.hud.ac.uk/id/eprint/10049

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