Scaling of Yukawa Couplings and Quark Flavor Mixings in the UED Model

Abstract

The evolution properties of Yukawa couplings and quark mixings are performed for the one-loop renormalization group equations in the Universal Extra Dimension (UED) model. It is found that the UED model has a substantial effect on the scaling of the fermion masses, including both quark and lepton sectors, whilst the radiative effects on the unitarity triangle is not a sensitive test in this model. Also, for this model, the renormalization invariants $R_{13}$ and $R_{23}$ describe the correlation between the mixing angles and mass ratios to a good approximation, with a variation of the order of ${\lambda }^4$ and ${\lambda }^5$ under energy scaling respectively.

Comments: 5 pages, 10 figures, Talk presented at the Workshop on Discovery Physics at the LHC -Kruger 2010, December 05-10, 2010. To appear in the PoS workshop proceedings