Radiative Axion Inflation

Abstract

Planck data robustly exclude the simple $\lambda {\varphi }^4$ scenario for inflation. This is also the case for models of Axion Inflation in which the inflaton field is the radial part of the Peccei-Quinn complex scalar field. In this letter we show that for the KSVZ model it is possible to match the data taking into account radiative corrections to the tree level potential. After writing down the 1-loop Coleman-Weinberg potential, we show that a radiative plateau is easily generated thanks to the fact that the heavy quarks are charged under $SU(3{)}_c$ in order to solve the strong CP problem. We also give a numerical example for which the inflationary observables are computed and the heavy quarks are predicted to have a mass $m_Q\gtrsim 10^{3}TeV$.

Version accepted on PLB. New section about reheating and baryogenesis added, references added

References in corpus (14)

• The Standard Model Higgs boson as the inflaton
• Matter and Antimatter in the Universe
• Distinguishing seesaw models at LHC with multi-lepton signals
• Axion Inflation in Type II String Theory
• $f(R)$ Gravity Inflation with String-Corrected Axion Dark Matter
• Indirect searches for sterile neutrinos at a high-luminosity Z-factory
• Chaotic inflation, radiative corrections and precision cosmology
• Unifying inflation and dark matter with the Peccei-Quinn field: observable axions and observable tensors
• Neutrino masses, leptogenesis and dark matter from small lepton number violation?
• GeV-scale hot sterile neutrino oscillations: a numerical solution
• Inflection-point Higgs Inflation
• Ruling out Critical Higgs Inflation?
• Inflationary Parameters in Renormalization Group Improved ${\varphi }^4$ Theory
• Large tensor-to-scalar ratio and running of the scalar spectral index with Instep Inflation

Cited by in corpus (11)

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• Unifying of Inflation with Early and Late Dark Energy Epochs in Axion $F(R)$ Gravity
• Geometric Inflation and Dark Energy with Axion $F(R)$ Gravity
• Propagation of Gravitational Waves in Chern-Simons Axion Einstein Gravity
• Supermassive Neutron Stars in Axion $F(R)$ Gravity
• Rotating Neutron Stars in F(R) Gravity with Axions
• Kinetic Axion $F(R)$ Gravity Inflation
• Warming up cold inflation
• Radiative Plateau Inflation with Conformal Invariance: Dynamical Generation of Electroweak and Seesaw Scales
• Neutron Stars in f(R)-Gravity and Its Extension with a Scalar Axion Field
• Holographic description of $F(R)$ gravity coupled with Axion Dark Matter