Search for the Rare Decay B0→τ+τ− at BABAR

B. Aubert, J.Y. Chen, K. Peters, L.L. Zhang, S. Chen, M.C. Simani, X.H. Li, M.A. Baak, H.J. Bulten, G. Raven, H. Snoek, P. David, H. Schroder, N. de Groot, N. van Bakel, Z. Yu

Research output: Contribution to JournalArticleAcademicpeer-review


We present the results of a search for the decay B0→τ+τ− in a data sample of (232±3)×106 Υ(4S)→B¯¯¯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(B0→τ+τ−)<4.1×10−3 at the 90% confidence level.
Original languageEnglish
Article number241802
JournalPhysical Review Letters
Issue number24
Publication statusPublished - 23 Jun 2006


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