Non-commutative geometry and the standard model vacuum
High Energy Physics - Theory
2009-11-11 v2
Abstract
The space of Dirac operators for the Connes-Chamseddine spectral action for the standard model of particle physics coupled to gravity is studied. The model is extended by including right-handed neutrino states, and the S0-reality axiom is not assumed. The possibility of allowing more general fluctuations than the inner fluctuations of the vacuum is proposed. The maximal case of all possible fluctuations is studied by considering the equations of motion for the vacuum. Whilst there are interesting non-trivial vacua with Majorana-like mass terms for the leptons, the conclusion is that the equations are too restrictive to allow solutions with the standard model mass matrix.
Cite
@article{arxiv.hep-th/0601192,
title = {Non-commutative geometry and the standard model vacuum},
author = {John W. Barrett and Rachel A. Dawe Martins},
journal= {arXiv preprint arXiv:hep-th/0601192},
year = {2009}
}
Comments
21 pages. v2: some comments improved