We present the results of a search for the decay B0→τ+τ- in a data sample of (232±3)×106 Υ(4S)→BB̄ 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(B0→τ+τ-)<4.1×10-3 at the 90% confidence level.

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2006). Search for the rare decay B0 → τ+τ- at B A B A R. PHYSICAL REVIEW LETTERS, 96(24) [10.1103/PhysRevLett.96.241802].

Search for the rare decay B0 → τ+τ- at B A B A R

CARPINELLI, Massimo;
2006

Abstract

We present the results of a search for the decay B0→τ+τ- in a data sample of (232±3)×106 Υ(4S)→BB̄ 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(B0→τ+τ-)<4.1×10-3 at the 90% confidence level.
Articolo in rivista - Articolo scientifico
Data acquisition; Detectors; Numerical methods; Sampling; Confidence level; Data sample; Neutral B meson; Signal decay; Signaling;
English
2006
96
24
241802
none
Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2006). Search for the rare decay B0 → τ+τ- at B A B A R. PHYSICAL REVIEW LETTERS, 96(24) [10.1103/PhysRevLett.96.241802].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389746
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