Almost-Commutative Geometries Beyond the Standard Model II: New Colours
arXiv:0706.0595 · doi:10.1088/1751-8113/40/32/017
Abstract
We will present an extension of the standard model of particle physics in its almost-commutative formulation. This extension is guided by the minimal approach to almost-commutative geometries employed in [13], although the model presented here is not minimal itself. The corresponding almost-commutative geometry leads to a Yang-Mills-Higgs model which consists of the standard model and two new fermions of opposite electro-magnetic charge which may possess a new colour like gauge group. As a new phenomenon, grand unification is no longer required by the spectral action.
Revised version for publication in J.Phys.A with corrected Higgs masses