Dynamical Gauge-Higgs Unification in the Electroweak Theory

Abstract

$SU(2{)}_L$ doublet Higgs fields are unified with gauge fields in the $U(3{)}_s\times U(3{)}_w$ model of Antoniadis, Benakli and Quirós' on the orbifold $M^4\times (T^2/Z_2)$. The effective potential for the Higgs fields (the Wilson line phases) is evaluated. The electroweak symmetry is dynamically broken to $U(1{)}_{EM}$ by the Hosotani mechanism. There appear light Higgs particles. There is a phase transition as the moduli parameter of the complex structure of $T^2$ is varied.

Comments: 14 pages, 3 figures, v.3