SU(2) Kinetic Mixing Terms and Spontaneous Symmetry Breaking

Details SU(2) Kinetic Mixing Terms and Spontaneous Symmetry Breaking SU(2) Kinetic Mixing Terms and Spontaneous Symmetry Breaking

2008-11-07

arxiv.org/abs/0811.1198v2

Mod.Phys.Lett.A24:2539-2550,2009

Physics

High Energy Physics

High Energy Physics - Theory

9pp. typos and clarifications are added

Scientific paper

10.1142/S0217732309030898

The non-abelian generalization of the Holdom model --{\it i.e.} a theory with two gauge fields coupled to the kinetic mixing term $g {tr}(F_{\mu \nu} (A) F_{\mu \nu} (B))$-- is considered. Contrarily to the abelian case, the group structure $G\times G$ is explicitly broken to $G$. For SU(2) this fact implies that the residual gauge symmetry as well as the Lorentz symmetry is spontaneusly broken. We show that this mechanism provides of masses for the involved particles. Also, the model presents instanton solutions with a redefined coupling constant.

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