Dark Matter and Baryogenesis from Non-Abelian Gauged Lepton Number

Bartosz Fornal

doi:10.1142/S021773231730018X

Dark Matter and Baryogenesis from Non-Abelian Gauged Lepton Number

High Energy Physics - Phenomenology 2017-06-14 v1

Authors: Bartosz Fornal

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Abstract

A simple model is constructed based on the gauge symmetry $SU(3)_c \times SU(2)_L \times U(1)_Y \times SU(2)_\ell$ , with only the leptons transforming nontrivially under $SU(2)_\ell$ . The extended symmetry is broken down to the Standard Model gauge group at TeV-scale energies. We show that this model provides a mechanism for baryogenesis via leptogenesis in which the lepton number asymmetry is generated by $SU(2)_\ell$ instantons. The theory also contains a dark matter candidate - the $SU(2)_\ell$ partner of the right-handed neutrino.

Keywords

dark matter baryogenesis leptogenesis non-abelian gauge symmetry lepton number instantons right-handed neutrino

Cite

@article{arxiv.1705.07297,
  title  = {Dark Matter and Baryogenesis from Non-Abelian Gauged Lepton Number},
  author = {Bartosz Fornal},
  journal= {arXiv preprint arXiv:1705.07297},
  year   = {2017}
}

Comments

17 pages, 5 figures; Plenary talk given at the Conference on Cosmology, Gravitational Waves and Particles, Singapore, February 6-10, 2017; based on arXiv:1703.00199 [hep-ph]

Dark Matter and Baryogenesis from Non-Abelian Gauged Lepton Number

Abstract

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