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A dark sector extension of the almost-commutative standard model

  • We consider an extension of the Standard Model within the framework of Noncommutative Geometry. The model is based on an older model [C. A. Stephan, Phys. Rev. D 79, 065013 (2009)] which extends the Standard Model by new fermions, a new U(1)-gauge group and, crucially, a new scalar field which couples to the Higgs field. This new scalar field allows to lower the mass of the Higgs mass from similar to 170 GeV, as predicted by the Spectral Action for the Standard Model, to a value of 120-130 GeV. The shortcoming of the previous model lay in its inability to meet all the constraints on the gauge couplings implied by the Spectral Action. These shortcomings are cured in the present model which also features a "dark sector" containing fermions and scalar particles.

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Author:Christoph A. Stephan
ISSN:0217-751X (print)
ISSN:1793-656X (online)
Parent Title (English):International journal of modern physics : A, Particles and fields, gravitation, cosmology, nuclear physics
Publisher:World Scientific
Place of publication:Singapore
Document Type:Article
Year of first Publication:2014
Year of Completion:2014
Release Date:2017/03/27
Tag:Higgs boson; Noncommutative geometry; beyond Standard Model; scalar fields; spectral triple
Funder:Deutsche Forschungsgemeinschaft; [SFB 647]
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
Peer Review:Referiert