English

Violations of universality in a vectorlike extension of the standard model

High Energy Physics - Phenomenology 2009-10-28 v1

Abstract

Violations of universality of couplings in a vectorlike extension of the standard model with three heavy mirror fermion families are considered. The recently observed discrepancies between experiments and the standard model in the hadronic branching fractions RbR_b and RcR_c of the Z-boson are explained by the mixing of fermions with their mirror fermion partners.

Keywords

Cite

@article{arxiv.hep-ph/9604214,
  title  = {Violations of universality in a vectorlike extension of the standard model},
  author = {István Montvay},
  journal= {arXiv preprint arXiv:hep-ph/9604214},
  year   = {2009}
}

Comments

latex2e, 11 pages