wiki:B-L-SM

Version 11 (modified by WeiLiu, 2 weeks ago) (diff)

Texts recover

The B-L model

as a U(1) extension of the SM with 3 RH neutrinos and a singlet scalar.

This is an update to the previous minimal Zprime model.

Implementation authors

  • This version
    • Wei Liu
      • Department of Physics & Astronomy, University College London
      • wei.liu.16 -at- ucl.ac.uk
      • update based on Lorenzo Basso's model with availability to FeynRules 2.3.
  • Previous version
    • Lorenzo Basso
      • Physikalisches Institut, Albert-Ludwigs-Universität Freiburg (Germany)
      • lorenzo.basso -at- physik.uni-freiburg.de
      • (formerly at University of Southampton, UK & RAL-PPD, Didcot, UK)
      • Based upon the minimal B-L model implementation, done in collaboration with Giovanni Marco Pruna (TU Dresden, Institut für Kern- und Teilchenphysik, Dresden, Germany, formerly at University of Southampton, UK & RAL-PPD, Didcot, UK).

Model description

The model describe a U(1) extension of the SM, related to the B-L (baryon minus lepton) charge. 3 RH neutrinos are required to cancel the anomalies, thus providing neutrino masses via the type-I see-saw. A Z' boson is also present, together with a further scalar for the spontaneous symmetry breaking of the further U(1) factor, at TeV scale.

  • Minimal B-L model: gt = 0. This is the "Minimal" version of the model, where the mixing between Z and Z' is set to zero. This choice is set for the .fr and UFO file.

References

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