The minimal B-L extension of the SM.

Implementation authors

• 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)

In collaboration with Giovanni Marco Pruna (TU Dresden, Institut für Kern- und Teilchenphysik, Dresden, Germany)

---

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.

This is the "pure" version of the model, where the mixing between Z and Z' is set to zero.

---

References

• ​http://arxiv.org/abs/arXiv:0812.4313

Details about available parameter space and experimental/theoretical constraints can be found in:

• ​http://arxiv.org/abs/arXiv:1002.1939 Tree Level Unitarity Bounds for the Minimal B-L Model
• ​http://arxiv.org/abs/arXiv:1002.3586 Z' discovery potential at the LHC in the minimal B-L extension of the Standard Model
• ​http://arxiv.org/abs/arXiv:1004.3039 A Renormalisation Group Equation Study of the Scalar Sector of the Minimal B-L Extension of the Standard Model
• ​http://arxiv.org/abs/arXiv:1011.2612 Phenomenology of the minimal B−L extension of the Standard Model: the Higgs sector

---

Model files Soon available