Constraints on the masses of fourth generation quarks

Details Constraints on the masses of fourth generation quarks Constraints on the masses of fourth generation quarks

2009-06-25

arxiv.org/abs/0906.4715v1

Phys.Rev.D79:113013,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 2 figures

Scientific paper

10.1103/PhysRevD.79.113013

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.

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