Ohio State Department of Physics

HEP/Astro Seminar - Wednesday, 26 February 2003

Revisiting Top-Bottom-Tau Yukawa Unification in Supersymmetric Grand Unified Theories

Dr. Kazuhiro Tobe (Michgan)


Minimal SO(10) Supersymmetric Grand Unified Theories (SUSY GUTs) are one of interesting candidates for physics beyond the standard model: all quarks and leptons (including right-handed neutrino) in one generation are unified into 16-dimensional representation of SO(10), and two Higgs doublets in SUSY standard model are also unified in 10-dimensional representation. In this talk, third family Yukawa unification, as predicted by minimal SO(10) GUTs, is revisited. Since GUT-scale Yukawa couplings are very sensitive to SUSY threshold corrections at weak scale, Yukawa unification hypothesis strongly constrains low-energy SUSY particle spectrum. I show constraints on the SUSY spectrum requiring Yukawa unification, and then discuss possible SUSY breaking scenarios in order to achieve Yukawa unification.

15:30, Smith Lab 4079

Last updated 17 February 2003, Matthew Wingate

Valid XHTML 1.1!