Search for the Rare Decay $B^{0} \to τ^{+} τ^{-}$ atBABAR

Open Access

23 June 2006

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 96 (24) , 241802
https://doi.org/10.1103/physrevlett.96.241802

Abstract

We present the results of a search for the decay

B^{0} \to τ^{+} τ^{-}

in a data sample of

(232 \pm 3) \times 10^{6}

Υ (4 S) \to B \bar{B}

decays using the BABAR detector. Certain extensions of the standard model predict measurable levels of this otherwise rare decay. We reconstruct fully one neutral

B

meson and seek evidence for the signal decay in the rest of the event. We find no evidence for signal events and obtain

B (B^{0} \to τ^{+} τ^{-}) < 4.1 \times 10^{- 3}

at the 90% confidence level.

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This publication has 10 references indexed in Scilit:

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Search for the Rare DecayB0→τ+τ−atBABAR

Abstract

Keywords

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Search for the Rare Decay $B^{0} \to τ^{+} τ^{-}$ atBABAR