New Scalar Fields in Noncommutative Geometry
Abstract
In this publication we present an extension of the Standard Model within the framework of Connes' noncommutative geometry [1]. The model presented here is based on a minimal spectral triple [7] which contains the Standard Model particles, new vectorlike fermions and a new U(1) gauge subgroup. Additionally a new complex scalar field appears that couples to the right-handed neutrino, the new fermions and the standard Higgs particle. The bosonic part of the action is given by the spectral action [1] which also determines relations among the gauge couplings, the quartic scalar couplings and the Yukawa couplings at a cut-off energy of ca. 10^(17) GeV. We investigate the renormalisation group flow of these relations. The low energy behaviour allows to constrain the Higgs mass, the mass of the new scalar and the mixing between these two scalar fields.
Cite
@article{arxiv.0901.4676,
title = {New Scalar Fields in Noncommutative Geometry},
author = {Christoph A. Stephan},
journal= {arXiv preprint arXiv:0901.4676},
year = {2013}
}
Comments
Missing left-hand side of eq. (21) added. Some typos and normalisations in section 3 and 5.2 corrected