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Search for the Decay B0 →γγ

Aubert, B. et al. (2001) Search for the Decay B0 →γγ. Physical Review Letters, 87 (24). p. 241803. ISSN 0031-9007

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Abstract

We present a limit on the branching fraction for the decay B0→γγ using data collected at the ϒ(4S) resonance with the BABAR detector at the PEP-II asymmetric energy e+e- collider. Based on the observation of one event in the signal region, out of a sample of 21.3×106 e+e-→ϒ(4S)→BB̅ decays, we establish an upper limit on the branching fraction of B(B0→γγ)<1.7×10-6 at the 90% confidence level. This result substantially improves upon existing limits.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
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Depositing User: Sharon Beastall
Date Deposited: 04 Jan 2012 12:53
Last Modified: 04 Jan 2012 12:53
URI: http://eprints.hud.ac.uk/id/eprint/12319

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