### Abstract

We consider phenomenological constraints on the mass M_{Z}′ and the mixing angles θ_{R} and ξ of the neutral sector in general SU(2)_{L}xSU(2)_{R}xU(1) models using electroweak data. The analysis of the neutral sector has the advantage that it has relatively fewer parameters compared to the charged sector since the Cabibbo-Kobayashi-Maskawa matrix elements in the right-handed sector are not involved. We consider the theoretical relations between the gauge boson masses and the mixing angles. We combine the precision electroweak data from CERN LEP I and the low-energy neutral-current experimental data to constrain the parameters in the model. It turns out that M_{Z}′>430 GeV, -0.00040<ξ<0.0037, with little constraint on θ_{R}. Using these constraints, we compare σ(e^{+}e^{-}→μ^{+}μ^{-}), σ(e^{+}e^{-}→bb̄), and A_{FB}^{l} with the experimental data at LEP II.

Original language | English |
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Article number | 035002 |

Pages (from-to) | 1-10 |

Number of pages | 10 |

Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |

Volume | 61 |

Issue number | 3 |

Publication status | Published - 2000 Feb 1 |

### ASJC Scopus subject areas

- Physics and Astronomy (miscellaneous)

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## Cite this

_{L}xSU(2)

_{R}xU(1) models.

*Physical Review D - Particles, Fields, Gravitation and Cosmology*,

*61*(3), 1-10. [035002].