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http://hdl.handle.net/2445/131457
Title: | Search for the reactions e+e−→μ+τ− and e+e−→e+τ− |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 8-Feb-2007 |
Publisher: | American Physical Society |
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 211 fb − 1 recorded by the BABAR experiment at the SLAC PEP-II asymmetric-energy B Factory at a center-of-mass energy of √ s = 10.58 GeV . We find no evidence for a signal and set the 90% confidence level upper limits on the cross sections to be σ μ τ < 3.8 fb and σ e τ < 9.2 fb . The ratio of the cross sections with respect to the dimuon cross section are measured to be σ μ τ / σ μ μ < 3.4 × 10 − 6 and σ e τ / σ μ μ < 8.2 × 10 − 6 . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.75.031103 |
It is part of: | Physical Review D, 2007, vol. 75, num. 3, p. 031103 |
URI: | http://hdl.handle.net/2445/131457 |
Related resource: | https://doi.org/10.1103/PhysRevD.75.031103 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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