### Abstract

We study the sensitivity of a 500-GeV e^{+}e^{-} linear collider to CP-violating anomalous gauge-boson couplings. We find that, with an integrated luminosity of 50 fb^{-1}, and with only one nonzero coupling at a time, the process e^{+}e^{-} → W^{+}W^{-} can be used to set the 95%-confidence-level bounds |k̃_{γ} | ≤ 01, |k̃_{Z} \ ≤ 0.1, and |g^{Z} _{4} | ≤ 0.1 from CP-even observables. By studying certain distributions in the process e^{+}e^{-} → μ^{+}μ^{-}νν̄ , one of the bounds can be improved to |g^{Z} _{4}| ≤ 0.06. This process also allows the construction of a CP-odd observable that can be used to set bounds on CP-violating new physics. At a 95% confidence level, we have obtained |k̃γ | ≤ 0.3, |k̃_{Z} | ≤ 0.2, and a much weaker bound on |g^{Z} _{4}|.

Original language | English |
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Pages (from-to) | 886-894 |

Number of pages | 9 |

Journal | Physics of Atomic Nuclei |

Volume | 62 |

Issue number | 5 |

Publication status | Published - May 1999 |

Externally published | Yes |

## Cite this

^{+}e

^{-}→μ

^{+}μ

^{-}νν̄ at a next linear collider.

*Physics of Atomic Nuclei*,

*62*(5), 886-894.