English

$Zb\bar{b}$ Loop Correction with Charge 2/3 Singlet Quarks

High Energy Physics - Phenomenology 2015-06-25 v1

Abstract

We calculate the non-universal correction to the ZbbˉZb\bar{b} vertex in a simple extension of the Standard Model, where a charge +2/3+2/3 isosinglet quark is added to the standard spectrum. Comparison is made with other solutions to RbR_b (and RcR_c) that demand particles lighter than MWM_W.

Keywords

Cite

@article{arxiv.hep-ph/9606436,
  title  = {$Zb\bar{b}$ Loop Correction with Charge 2/3 Singlet Quarks},
  author = {Wei-Shu Hou and Hsien-chung Kao},
  journal= {arXiv preprint arXiv:hep-ph/9606436},
  year   = {2015}
}

Comments

11 pages, uses latex. Three figures included

R2 v1 2026-07-22T14:32:01.281Z