Search for the decay B+ -> tau(+)nu(tau)

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, Z. Yu

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

We search for the rare leptonic decay B+→τ+ντ in a sample of 232×106 BB̄ pairs collected with the BABAR detector at the SLAC PEP-II B-Factory. Signal events are selected by examining the properties of the B meson recoiling against the semileptonic decay B-→D*0-ν̄. We find no evidence for a signal and set an upper limit on the branching fraction of B(B+→τ+ντ)<2.8×10-4 at the 90% confidence level. We combine this result with a previous, statistically independent BABAR search for B+→τ+ντ to give an upper limit of B(B+→τ+ντ)<2.6×10-4 at the 90% confidence level. © 2006 The American Physical Society.
Original languageEnglish
JournalPhysical Review D
Volume73
Issue number5
DOIs
Publication statusPublished - 2006

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Search for the decay B+ -> tau(+)nu(tau)

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    Aubert, B., Chen, J. Y., Peters, K., Zhang, L. L., Chen, S., Simani, M. C., ... Yu, Z. (2006). Search for the decay B+ -> tau(+)nu(tau). Physical Review D, 73(5). https://doi.org/10.1103/PhysRevD.73.057101