Resonant decay of flat directions

Abstract

We study preheating, i.e., non-perturbative resonant decay, of flat direction fields, concentrating on MSSM flat directions and the right handed sneutrino. The difference between inflaton preheating and flaton preheating, is that the potential is more constraint in the latter case. The effects of a complex driving field, quartic couplings in the potential, and the presence of a thermal bath are important and cannot be neglected. Preheating of MSSM flat directions is typically delayed due to out-of-phase oscillations of the real and imaginary components and may be preceded by perturbative decay or $Q$-ball formation. Particle production due to the violation of adiabaticity is expected to be inefficient due to back reaction effects. For a small initial sneutrino VEV, $<N>\lesssim m_N/h$ with $m_N$ the mass of the right handed sneutrino and $h$ a yakawa coupling, there are tachyonic instabilities. The $D$-term quartic couplings do not generate an effective mass for the tachyonic modes, making it an efficient decay channel. It is unclear how thermal scattering affects the resonance.

20 pages, 4 figures

References in corpus (56)

• Towards the Theory of Reheating After Inflation
• Reheating after Inflation
• Generating the curvature perturbation without an inflaton
• Universe Reheating after Inflation
• Adiabatic CMB perturbations in pre-big bang string cosmology
• Effects of Cosmological Moduli Fields on Cosmic Microwave Background
• The primordial density perturbation in the curvaton scenario
• Nongaussian Isocurvature Perturbations from Inflation
• Baryogenesis from Flat Directions of the Supersymmetric Standard Model
• The origin of the matter-antimatter asymmetry
• Dynamics of Symmetry Breaking and Tachyonic Preheating
• Q-Balls and Baryogenesis in the MSSM
• Structure of Resonance in Preheating after Inflation
• Classical decay of inflaton
• D-Term Inflation
• Naturalness Versus Supersymmetric Non-renormalization Theorems
• Dissipation via Particle Production in Scalar Field Theories
• Solitons in the supersymmetric extensions of the Standard Model
• Flat directions in the scalar potential of the supersymmetric standard model
• Q-ball Formation through Affleck-Dine Mechanism
• Analytic and Numerical Study of Preheating Dynamics
• Preheating of Fermions
• Leptogenesis from $\tilde{N}$-dominated early universe
• Lattice study of classical inflaton decay
• Q-ball formation in the gravity-mediated SUSY breaking scenario
• Preserving Flat Directions During Inflation
• Reheating and Thermalization, Linear Vs. Non-Linear Relaxation
• Non-Equilibrium Evolution of Scalar Fields in FRW Cosmologies I
• Leptogenesis in Supersymmetric Standard Model with Right-handed Neutrino
• The Universe after inflation: the wide resonance case
• Cosmic Density Perturbations from Late-Decaying Scalar Condensations
• Resonant decay of Bose condensates
• On the Theory of Fermionic Preheating
• The simplest curvaton model
• Some Issues in Flat Direction Baryogenesis
• Scalar Field Dynamics in Friedman Robertson Walker Spacetimes
• Preheating of massive fermions after inflation: analytical results
• Thermalisation after inflation
• Models of inflation liberated by the curvaton hypothesis
• The Development of Equilibrium After Preheating
• Adiabatic density perturbations and matter generation from the MSSM
• Production of spin 3/2 particles from vacuum fluctuations
• Nonequilibrium dynamics of fermions in a spatially homogeneous scalar background field
• Thermalization after inflation and production of massive stable particles
• Reheating and Supersymmetric Flat-Direction Baryogenesis
• MSSM flat direction as a curvaton
• The curvaton scenario in supersymmetric theories
• Supersymmetric D-term Inflation, Reheating and Affleck-Dine Baryogenesis
• Inflatonic Solitons In Running Mass Inflation
• Reheating as a surface effect
• Dynamics of coupled bosonic systems with applications to preheating
• Coherent Baryogenesis
• Parametric Resonance For Complex Fields
• Affleck-Dine leptogenesis via right-handed sneutrino fields in a supersymmetric hybrid inflation model
• Preheating in Supersymmetric Theories
• Analytical and numerical properties of Affleck-Dine condensate formation

Cited by in corpus (52)

• Inflation Dynamics and Reheating
• Reheating in Inflationary Cosmology: Theory and Applications
• Particle physics models of inflation and curvaton scenarios
• MSSM flat direction inflation: slow roll, stability, fine tunning and reheating
• Models of inflation liberated by the curvaton hypothesis
• The CDM isocurvature perturbation in the curvaton scenario
• Non-gaussianity and cosmic uncertainty in curvaton-type models
• Can the curvaton paradigm accommodate a low inflation scale?
• Very Large Primordial Non-Gaussianity from multi-field: Application to Massless Preheating
• Relaxing Constraints on Inflation Models with Curvaton
• Seed perturbations for primordial magnetic fields from MSSM flat directions
• Implications of the Curvaton on Inflationary Cosmology
• Supersymmetric Thermalization and Quasi-Thermal Universe: Consequences for Gravitinos and Leptogenesis
• Attraction towards an inflection point inflation
• Curvatons in Supersymmetric Models
• WMAP, neutrino degeneracy and non-Gaussianity constraints on isocurvature perturbations in the curvaton model of inflation
• Reheating in supersymmetric high scale inflation
• MSSM Higgses as the source of reheating and all matter
• Probing the parameter space for an MSSM inflation and the neutralino dark matter
• Identifying the curvaton within MSSM
• The Fate of SUSY Flat Directions and their Role in Reheating
• Preheating curvature perturbations with a coupled curvaton
• Parametric Decay of the Curvaton
• Sneutrino condensate source for density perturbations, leptogenesis and low reheat temperature
• Longevity of supersymmetric flat directions
• Supersymmetric Curvatons and Phase-Induced Curvaton Fluctuations
• The nonperturbative decay of SUSY flat directions
• Leptogenesis from a sneutrino condensate revisited
• Hybrid Inflation without Flat Directions and without Primordial Black Holes
• Affleck-Dine condensate, late thermalization and the gravitino problem
• Supersymmetric Leptogenesis and the Gravitino Bound
• Gravitino production from reheating in split supersymmetry
• Conditions for a Successful Right-Handed Majorana Sneutrino Curvaton
• Non-Perturbative Flat Direction Decay
• Sneutrino condensate as a candidate for the hot big bang cosmology
• Affleck-Dine dynamics, Q-ball formation and thermalisation
• Curvaton Scenario with Affleck-Dine Baryogenesis
• Enhanced reheating via Bose condensates
• New developments on embedding inflation in gauge theory and particle physics
• Relaxation leptogenesis, isocurvature perturbations, and the cosmic infrared background
• The Origin of the Large-Scale Structure in the Universe: Theoretical and Statistical Aspects
• The Physics of Q-balls
• Non-perturbative decay of udd and QLd flat directions
• Aspects of warm-flat directions
• A model of cosmology and particle physics at an intermediate scale
• Study of the Growth of Entropy Modes in MSSM Flat Directions Decay: Constraints on the Parameter Space
• Constraining the curvaton scenario
• Kinetic and chemical equilibrium of the Universe and gravitino production
• Supersymmetric flat directions and resonant gravitino production
• MSSM: source for generating perturbations
• Early Universe cosmology and supergravity
• Perturbative and Nonperturbative Contributions to a Simple Model for Baryogenesis