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.

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2007). Search for the reactions e+e-→μ+τ- and e+e-→e+τ-. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 75(3) [10.1103/PhysRevD.75.031103].

Search for the reactions e+e-→μ+τ- and e+e-→e+τ-

CARPINELLI, Massimo;
2007

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.
Articolo in rivista - Articolo scientifico
ABAR experiment
English
2007
75
3
031103
none
Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2007). Search for the reactions e+e-→μ+τ- and e+e-→e+τ-. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 75(3) [10.1103/PhysRevD.75.031103].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389653
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