## Abstract

An analysis of the three leptonic reactions e^{+}e^{-}→e^{+}e^{-}, μ^{+}μ^{-} and τ^{+}τ^{-} over a wide range of energy, {Mathematical expression} is presented. The data were obtained with the JADE detector at the e^{+}e^{-} storage ring PETRA. They are compared to predictions of electroweak theories, in particular the standard model. For the total cross-sections of all three reactions and for the differential cross-section of Bhabha scattering no deviation from QED is found over the entire energy range. The differential cross-sections of μ and τ pairs at high energies show the angular asymmetry predicted by electroweak interference. The axial-vector and vector weak coupling constant, sin^{2}θ_{W} and M_{Z} are determined and compared to other measurements. Finally, limits on deviations from the standard model are given.

Original language | English |
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Pages (from-to) | 371-380 |

Number of pages | 10 |

Journal | Zeitschrift für Physik C Particles and Fields |

Volume | 30 |

Issue number | 3 |

DOIs | |

Publication status | Published - Sept 1986 |

Externally published | Yes |

## All Science Journal Classification (ASJC) codes

- Physics and Astronomy (miscellaneous)