GUT Inflation and Proton Decay after WMAP5

Abstract

We employ Coleman-Weinberg and Higgs potentials to implement inflation in non-supersymmetric grand unified theories (GUTs) such as SU(5) and SO(10). To realize a scalar spectral index close to 0.96, as indicated by the most recent WMAP 5-year anlaysis, the energy scale of observable inflation turns out to be of order $10^{16}$ GeV. This implies a GUT symmetry breaking scale of similar magnitude, and proton lifetime of order $10^{34}$-$10^{38}$ years. In some SO(10) models with axion dark matter, the scalar leptoquark boson exchange leads to proton decay with a lifetime of order $10^{34}$-$10^{35}$ years.

15 pages, 4 figures

References in corpus (10)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• Inflationary Cosmology
• Proton stability in grand unified theories, in strings, and in branes
• Supersymmetric And Smooth Hybrid Inflation In The Light Of WMAP3
• Testing String Theory with CMB
• MCMC analysis of WMAP3 and SDSS data points to broken symmetry inflaton potentials and provides a lower bound on the tensor to scalar ratio
• Chaotic inflation, radiative corrections and precision cosmology
• Coleman-Weinberg Potential In Good Agreement With WMAP
• The inflationary gravitational-wave background and measurements of the scalar spectral index

Cited by in corpus (31)

• Encyclopaedia Inflationaris
• Supersymmetric Hybrid Inflation Redux
• Coleman-Weinberg Inflation in light of Planck
• Embedding inflation into the Standard Model - more evidence for classical scale invariance
• Minimal Supersymmetric Hybrid Inflation, Flipped SU(5) and Proton Decay
• Super-Heavy Dark Matter - Towards Predictive Scenarios from Inflation
• GUT Physics in the era of the LHC
• Classically Scale Invariant Inflation, Supermassive WIMPs, and Adimensional Gravity
• The Observational Status of Simple Inflationary Models: an Update
• Inflation and majoron dark matter in the seesaw mechanism
• Primordial monopoles, proton decay, gravity waves and GUT inflation
• Testing non-minimally coupled inflation with CMB data: a Bayesian analysis
• Hybrid Inflation Revisited in Light of WMAP5
• Monopoles, Strings and Gravitational Waves in Non-minimal Inflation
• Inflationary predictions of double-well, Coleman-Weinberg, and hilltop potentials with non-minimal coupling
• Axion Inflation, Proton Decay and Leptogenesis in $SU(5)\times U(1{)}_{PQ}$
• Higgs Inflation, Quantum Smearing and the Tensor to Scalar Ratio
• Asymmetric Dark Matter, Inflation and Leptogenesis from B-L Symmetry Breaking
• A Predictive $SO(10)$ Model
• Beauty is more attractive: Particle Production and Moduli trapping with Higher Dimensional Interaction
• From Hybrid to Quadratic Inflation With High-Scale Supersymmetry Breaking
• Cosmological Constraints on the Higgs Boson Mass
• Conformal GUT inflation, proton lifetime and non-thermal leptogenesis
• Axion Model with Intermediate Scale Fermionic Dark Matter
• Very low scale Coleman-Weinberg inflation with non-minimal coupling
• First constraints on non-minimally coupled Natural and Coleman-Weinberg inflation and massive neutrino self-interactions with Planck+BICEP/Keck
• Electroweak monopoles and magnetic dumbbells in grand unified theories
• Nonminimal GUT inflation after Planck results
• Axions, WIMPs, proton decay and observable $r$ in $SO(10)$
• Phase transition and monopole production in supergravity inflation
• Dark matter and Standard Model reheating from conformal GUT inflation