Quark mixings as a test of a new symmetry of quark Yukawa couplings

H. González, S. R. Juárez W., P. Kielanowski +1

Based on the hierarchy exhibited by quarks masses at low energies, we assume that Yukawa couplings of up and down quarks are related by $Y_u\propto Y_d^2$ at grand unification scal…