Inflation from the Finite Scale Gauged Nambu-Jona-Lasinio Model
arXiv:1611.00210 · doi:10.1016/j.nuclphysb.2017.03.024
Abstract
The possibility to construct an inflationary universe scenario for the finite-scale gauged Nambu-Jona-Lasinio model is investigated. This model can be described by the Higgs-Yukawa type interaction model with the corresponding compositeness scale. Therefore, the one-loop Higgs-Yukawa effective potential is used with the compositeness condition for the study of inflationary dynamics. We evaluate the fluctuations in the cosmic microwave background for the model with a finite compositeness scale in the slow-roll approximation. We find the remarkable dependence on the gauge group and the number of fermion flavors. It is also proved that the model has similar behavior with the chaotic inflation and the Starobinsky model at the flat and steep limits, respectively. It is demonstrated that realistic inflation consistent with Planck data is possible for a range of theory parameters.
14 pages, 2 figures:version to appear in NPB
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- Peccei-Quinn Symmetry Breaking via Asymptotically Safe Dynamical Scalegenesis: A Walking Axicolor and Axion
- Dark Energy from pNGB Mediated Dirac Neutrino Condensate
- An alternative attractor in gauged NJL inflation
- Fermionic Tachyons as a Source of Dark Energy
- Neutrino Condensate Dark Energy from TeV Scale Extra Dimensions