Search for the reactions e(+)e(-) -> mu(+)tau(-) and e(+)e(-)-> e(+)tau(-)

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

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

We report on a search for the lepton-flavor-violating processes e+e-→μ+τ- and e+e-→e+τ-. The data sample corresponds to an integrated luminosity of 211fb-1 recorded by the BABAR experiment at the SLAC PEP-II asymmetric-energy B Factory at a center-of-mass energy of s=10.58GeV. We find no evidence for a signal and set the 90% confidence level upper limits on the cross sections to be σμτ<3.8fb and σeτ<9.2fb. The ratio of the cross sections with respect to the dimuon cross section are measured to be σμτ/σμμ<3.4×10-6 and σeτ/σμμ<8.2×10-6. © 2007 The American Physical Society.
Original languageEnglish
JournalPhysical Review D
Volume75
Issue number3
DOIs
Publication statusPublished - 2007

Bibliographical note

Search for the reactions e(+)e(-) -> mu(+)tau(-) and e(+)e(-)-> e(+)tau(-)

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