Heavy Neutrinos, Z' and Higgs Bosons at the LHC: New Particles from an Old Symmetry

DOI: 10.4236/jmp.2013.41002   PDF   HTML   XML   4,987 Downloads   7,165 Views   Citations

Abstract

A new era in particle physics is being spurred on by new data from the Large Hadron Collider. Non-vanishing neutrino masses represent firm observational evidence of new physics beyond the Standard Model. An extension of the latter, based on a SU(3)C × SU(2)L × U(1)Y × U(1)B-L symmetry, incorporating an established Baryon minus Lepton number invariance, is proposed as a viable and testable solution to the neutrino mass problem. We argue that LHC data will probe all the new content of this model: heavy neutrinos, an extra gauge boson emerging from spontaneous breaking of the additional gauge group at the TeV scale, onset by a new heavier Higgs boson, also visible at the CERN proton-proton collider. An even more exciting version of this model is the one exploiting Supersymmetry: firstly, it incurporates all its well-known benefits; secondly, it alleviates the flaws of its more minimal realisations. Finally, this model provides a credible cold Dark Matter candidate, the lightest sneutrino, detectable in both underground and collider experiments.

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S. Khalil and S. Moretti, "Heavy Neutrinos, Z' and Higgs Bosons at the LHC: New Particles from an Old Symmetry," Journal of Modern Physics, Vol. 4 No. 1, 2013, pp. 7-10. doi: 10.4236/jmp.2013.41002.

Conflicts of Interest

The authors declare no conflicts of interest.

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