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Constraining minimal anomaly free U(1) extensions of the Standard Model

A preprint version of the article is available at arXiv.

Abstract

We consider a class of minimal anomaly free U(1) extensions of the Standard Model with three generations of right-handed neutrinos and a complex scalar. Using electroweak precision constraints, new 13 TeV LHC data, and considering theoretical limitations such as perturbativity, we show that it is possible to constrain a wide class of models. By classifying these models with a single parameter, κ, we can put a model independent upper bound on the new U(1) gauge coupling g z . We find that the new dilepton data puts strong bounds on the parameters, especially in the mass region M Z ′ ≲ 3 TeV.

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Ekstedt, A., Enberg, R., Ingelman, G. et al. Constraining minimal anomaly free U(1) extensions of the Standard Model. J. High Energ. Phys. 2016, 71 (2016). https://doi.org/10.1007/JHEP11(2016)071

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Keywords

  • Beyond Standard Model
  • Gauge Symmetry