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 × U ( 3 ) w model of Antoniadis, Benakli and Quiros' on the orbifold M 4 × ( 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.