A Stueckelberg extension of the standard model

Title:
A Stueckelberg extension of the standard model
Creator:
Körs, Boris (Author)
Nath, Pran (Author)
Language:
English
Publisher:
January 01, 2004
Type of resource:
Text
Genre:
Texts
Format:
electronic
Digital origin:
born digital
Abstract/Description:
An extension of the standard model of electro-weak interactions by an extra abelian gauge boson is given, in which the extra gauge boson and the hypercharge gauge boson both couple to an axionic scalar in a form that leads to a Stueckelberg mass term. The theory leads to a massive Zʹ whose couplings to fermions are uniquely determined and suppressed by small mixing angles. Such a Zʹ could have a low mass and appear in e+e− collisions as a sharp resonance. The branching ratios into f ̅ f species, and the forward-backward asymmetry are found to have distinctive features. The model also predicts a new unit of electric charge eʹ = Qʹe, where Qʹ is in general irrational, in the coupling of the photon with hidden matter that is neutral under SU(2)L × U(1)Y .
Comments:
Originally posted at http://arxiv.org/abs/hep-ph/0402047v2. Preprint of an article published in Physics Letters B, v.586 no.3-4, 2004.
Subjects and keywords:
Particles (Nuclear physics)
Bosons
Couplings
Fermions
electro-weak interactions
extra abelian gauge boson
extra gauge boson
hypercharge gauge boson
Stueckelberg mass term
high energy physics
Physics

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