Axion and right-handed neutrino in the minimal SUSY SO(10) model
Abstract
The connection between the axion and right-handed neutrinos is explored in the framework of the minimal SUSY SO(10) model. The former is related to the Peccei-Quinn (PQ) solution to the strong CP problem and the latter is to the light Majorana neutrinos through the see-saw mechanism. In this model, a relative phase between (10,1,3) (≡bold delta, barredR)⊂bold 126, barred and (bold 10, barred,1,3) (≡ΔR)⊂126 multiplets of SU(4) × SU(2)L × SU(2)R⊂SO(10) becomes a physical degree of freedom identified with the axion. Then, the PQ symmetry breaking scale (ΛPQ) and the B-L symmetry breaking scale (ΛB-L) coincide through the VEV of bold delta, barredR. The scalar partner of the lightest right-handed neutrino is regarded as the inflaton, which gives a consistent density fluctuation for the CMB.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- May 2005
- DOI:
- 10.1088/1126-6708/2005/05/017
- arXiv:
- arXiv:hep-ph/0412373
- Bibcode:
- 2005JHEP...05..017F
- Keywords:
-
- Cosmology of Theories beyond the SM Neutrino Physics Beyond Standard Model GUT;
- Astrophysics;
- High Energy Physics - Phenomenology
- E-Print:
- 8 pages, no figure