Search for the rare leptonic decay B⁺ → μ⁺νμ

B Aubert, Kelly Ford, Theresa Harrison, Christopher Hawkes, Sian Morgan, Alan Watson, Nigel Watson

Research output: Contribution to journalArticle

11 Citations (Scopus)


We have performed a search for the rare leptonic decay B+-->mu(+)nu(mu) with data collected at the Upsilon(4S) resonance by the BABAR experiment at the PEP-II storage ring. In a sample of 88.4 x 10(6) BB pairs, we find no significant evidence for a signal and set an upper limit on the branching fraction B(B+-->my(+)nu(my))<6.6 x 10(-6) at the 90% confidence level.
Original languageEnglish
Pages (from-to)221803
Number of pages1
JournalPhysical Review Letters
Issue number22
Early online date1 Jun 2004
Publication statusPublished - 1 Jun 2004


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