U(1)_\chi and Seesaw Dirac Neutrinos
Abstract
In the context of $SO(10) \to SU(5) \times U(1)_\chi$, it is shown how seesaw Dirac neutrinos may be obtained. In this framework, $U(1)$ lepton number is conserved, with which self-interaction dark matter with a light scalar dilepton mediator may be implemented. In addition, $U(1)$ baryon number may be broken to $(-1)^{3B}$, thereby generating a baryon asymmetry of the Universe. The axionic solution to the strong $CP$ problem may also be incorporated.
- Publication:
-
Letters in High Energy Physics
- Pub Date:
- February 2019
- DOI:
- 10.31526/LHEP.1.2019.109
- arXiv:
- arXiv:1811.09645
- Bibcode:
- 2019LHEP....2..109M
- Keywords:
-
- High Energy Physics - Phenomenology
- E-Print:
- 10 pages, 1 figure (final version to appear in LHEP)