The strong-CP question in SU(3)_c X SU(3)_L X U(1)_N models

Details The strong-CP question in SU(3)_c X SU(3)_L X U(1)_N models The strong-CP question in SU(3)_c X SU(3)_L X U(1)_N models

1994-11-28

arxiv.org/abs/hep-ph/9411406v1

Phys.Rev.D52:1659-1662,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, 8 pages, no figures

Scientific paper

10.1103/PhysRevD.52.1659

We analyze two recent models based on the gauge group SU(3)$_c\times$SU(3)$_L\times$U(1)$_N$ where each generation is not anomaly-free, but anomaly cancels when three generations are taken into account. We show that the most general Yukawa couplings of these models admit of a Peccei-Quinn symmetry. This symmetry can be extended to the entire Lagrangian by using extra fields in a very elegant way so that the resulting axion can be made invisible.

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