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Cosmological unification, dark energy, and the origin of neutrino mass
- Source :
- Physical Review
- Publication Year :
- 2020
- Publisher :
- APS, 2020.
-
Abstract
- We suggest that quintessential vacuum energy could be the source of right handed neutrino masses that feed the seesaw mechanism, which may provide observed small masses to light standard neutrinos. This idea is naturally implemented in the Cosmological Unification model based on the global $SO(1,1)$ symmetry, where early inflation and late accelerated expansion of the Universe are driven by the degrees of freedom of a doublet scalar field. In this model, the $SO(1,1)$ custodial symmetry naturally provides the quintessence to standard model singlet fermion couplings that source neutrino masses. We also show that the model predicts a highly suppressed contribution to relativistic degrees of freedom from quintessential quanta at any late Universe epoch, ensuring the consistency of the model.<br />Added references, new section added extending the theory, new figure, results unchanged/improved
- Subjects :
- Physics
Inflation (cosmology)
Particle physics
media_common.quotation_subject
High Energy Physics::Phenomenology
FOS: Physical sciences
Computer Science::Digital Libraries
Universe
Metric expansion of space
High Energy Physics - Phenomenology
High Energy Physics - Phenomenology (hep-ph)
Seesaw mechanism
Vacuum energy
Dark energy
Neutrino
Quintessence
media_common
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Physical Review
- Accession number :
- edsair.doi.dedup.....3406839dc3a52ab826ed8cce92b46e28