New inflation, preinflation, and leptogenesis

Abstract

We present a new inflation model in which the inflationary scenario including subsequent reheating is determined in part by a U(1)_R\times Z_n symmetry. A preinflation epoch can be introduced to yield, among other things, a running spectral index indicated by the WMAP analysis. The inflaton decay into right handed neutrinos, whose masses can be hierarchical because of the Z_n symmetry, leads to a reheat temperature >~10^8 GeV (~10^4-10^6 GeV in some cases), followed by non-thermal leptogenesis.

14 pages, 4 figures, revtex4. v2: no changes in content, page layout corrected. v3: the erroneous mention of new inflation as inverted hybrid inflation is corrected. v4: slightly abridged, matches published version

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• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• Particle Physics Models of Inflation and the Cosmological Density Perturbation
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Implications for Inflation
• Wilkinson Microwave Anisotropy Probe (WMAP) First Year Observations: TE Polarization
• Hybrid Inflation in Supergravity
• Leptogenesis in Inflationary Universe
• Baryon Asymmetry and Dark Matter
• Inflation and Monopoles in Supersymmetric SU(4)_c x SU(2)_L x SU(2)_R
• Probing the seesaw mechanism with neutrino data and leptogenesis
• Radiative decay of a massive particle and the non-thermal process in primordial nucleosynthesis
• Cosmological Gravitino Problem in Gauge-Mediated Supersymmetry Breaking Models
• Cosmological constraints from the CMB and Ly-alpha forest revisited
• Testing Supersymmetric Grand Unified Models of Inflation
• The Epoch of Reionization in Models with Reduced Small Scale Power
• Early Structure Formation and Reionization in a Cosmological Model with a Running Primordial Power Spectrum
• Upper Bound On Gluino Mass From Thermal Leptogenesis
• Primordial Black Hole Formation in Supergravity
• Dynamical Tuning of the Initial Condition for New Inflation in Supergravity
• Inflation with a running spectral index in supergravity
• Blue Perturbation Spectra from Hybrid Inflation with Canonical Supergravity
• Nucleosynthesis Bounds in Gauge-Mediated Supersymmetry Breaking Theories
• Leptogenesis in Smooth Hybrid Inflation
• GUT Scale Inflation, Non-Thermal Leptogenesis, and Atmospheric Neutrino Oscillations
• Cosmological perturbations and the reionization epoch
• Double Inflation in Supergravity and the Large Scale Structure
• Supersymmetric Inflation, Baryogenesis and ν_μ - ν_τ Oscillations

Cited by in corpus (65)

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• Supersymmetric Hybrid Inflation with Non-Minimal Kahler potential
• Anomaly-Induced Inflaton Decay and Gravitino-Overproduction Problem
• Reheat temperature in supersymmetric hybrid inflation models
• Supersymmetric Hybrid Inflation Redux
• Oscillons from String Moduli
• Supersymmetric And Smooth Hybrid Inflation In The Light Of WMAP3
• Sneutrino Hybrid Inflation in Supergravity
• On the Adiabatic Solution to the Polonyi/Moduli Problem
• Coleman-Weinberg Potential In Good Agreement With WMAP
• The Polonyi Problem and Upper bound on Inflation Scale in Supergravity
• Discrete R Symmetries and Domain Walls
• Eluding the Gravitino Overproduction in Inflaton Decay
• Trans-Planckian censorship of multistage inflation and dark energy
• SUGRA Hybrid Inflation with Shift Symmetry
• Low-scale Supersymmetry from Inflation
• Flavon Inflation
• Inflation With Realistic Supersymmetric SO(10)
• Supergravity Modification of D-term Hybrid Inflation: Solving the Cosmic String and Spectral Index Problems via a Right-Handed Sneutrino
• Inflation in Supersymmetric SU(5)
• Quadratic, Higgs and hilltop potentials in the Palatini gravity
• Nonthermal Gravitino Production after Large Field Inflation
• Inflationary predictions of double-well, Coleman-Weinberg, and hilltop potentials with non-minimal coupling
• Properties of oscillons in hilltop potentials: energies, shapes, and lifetimes
• Solving Cosmological Problems of Supersymmetric Axion Models in an Inflationary Universe
• Red Spectral Tilt and Observable Gravity Waves in Shifted Hybrid Inflation
• Cosmological Moduli Problem in Low Cutoff Theory
• Hill crossing during preheating after hilltop inflation
• Impact of other scalar fields on oscillons after hilltop inflation
• Parametric resonance after hilltop inflation caused by an inhomogeneous inflaton field
• Minimal Supergravity, Inflation, and All That
• QCD Axion Window and False Vacuum Higgs Inflation
• A Gravitino-rich Universe
• SUGRA New Inflation with Heisenberg Symmetry
• Electroweak Vacuum Metastability and Low-scale Inflation
• $\mu$-Hybrid Inflation with Low Reheat Temperature and Observable Gravity Waves
• Leptogenesis from reheating after inflation and cosmic string decay
• New Inflation in Supersymmetric SU(5) and Flipped SU(5) GUT Models
• Smooth Hybrid Inflation and Non-Thermal Type II Leptogenesis
• Strong dynamics at the Planck scale as a solution to the cosmological moduli problem
• Hilltop inflation with preinflation from coupling to matter fields
• Non-thermal Leptogenesis after Majoron Hilltop Inflation
• Gauge Mediation with Sequestered Supersymmetry Breaking
• Retrofitted Gravity Mediation without the Gravitino-overproduction Problem
• Realistic Inflation in No-Scale $U(1{)}_R$ Symmetric Flipped $SU(5)$
• Effects of the imaginary inflaton component in supergravity new inflation
• Anarchy and Leptogenesis
• Higgs mass and inflation
• Exploring primordial black holes and gravitational waves with R-symmetric GUT Higgs inflation
• Supersymmetric Majoron Inflation
• Palatini Higgs and Coleman-Weinberg inflation with non-minimal coupling
• Nonminimal Inflation in Supersymmetric GUTs with $U(1{)}_R\times Z_n$ Symmetry
• A Note on Gravitational Particle Production in Supergravity
• Hybrid inflation in high-scale supersymmetry
• Intermediate Scale Inflation and Metastable Supersymmetry Breaking
• Hidden Photon and Axion Dark Matter from Symmetry Breaking
• New Inflation in Waterfall Region
• Supersymmetric hybrid inflation and current-carrying metastable cosmic strings in $SU(4{)}_c\times SU(2{)}_L\times U(1{)}_R$
• Post-inflationary Leptogenesis and Dark Matter production: Metric versus Palatini formalism
• Inflation and Unification
• Disappearing Inflaton Potential via Heavy Field Dynamics
• Inverted Hybrid Inflation as a solution to gravitino problems in Gravity Mediation