Constraints on the masses of fourth generation quarks
High Energy Physics - Phenomenology
2009-07-09 v1
Abstract
We study the one-loop contribution of the down-type quark of the standard model-like fourth generation (b') on the top quark electric dipole moment. Using the known limits on the top quark electric dipole moments, we place limits on the b' mass. Then, from the estimated ratio for the masses of the fourth generation of quarks from other studies and the achieved bound from top quark electric dipole moments on mb', we obtain a limit for the up-type quark of fourth generation (t') mass.
Keywords
Cite
@article{arxiv.0906.4715,
title = {Constraints on the masses of fourth generation quarks},
author = {S. Hosseini and M. Mohammadi Najafabadi and A. Moshaii and Y. Radkhorrami and N. Tazik},
journal= {arXiv preprint arXiv:0906.4715},
year = {2009}
}
Comments
7 pages, 2 figures