Scalar Trapping and Saxion Cosmology

Abstract

We study in detail the dynamics of a scalar field in thermal bath with symmetry breaking potential. In particular, we focus on the process of trapping of a scalar field at an enhanced symmetry point through the thermal/non-thermal particle production, taking into account the interactions of produced particles with the standard model particles. As an explicit example, we revisit the saxion dynamics with an initial amplitude much larger than the Peccei-Quinn scale and show that the saxion trapping phenomenon happens for the most cases and it often leads to thermal inflation. We also study the saxion dynamics after thermal inflation, and it is shown that thermal dissipation effect on the saxion can relax the axion overproduction problem from the saxion decay.

32 pages, 3 figures; added references

References in corpus (13)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Warm Inflation and its Microphysical Basis
• Dynamics of oscillating scalar field in thermal environment
• Dissipative Effects on Reheating after Inflation
• Thermal inflation, baryogenesis and axions
• Curvaton Decay by Resonant Production of the Standard Model Higgs
• On bulk viscosity and moduli decay
• Inflation from a Supersymmetric Axion Model
• The mu-problem and axion in gauge mediation
• Axion model in gauge-mediated supersymmetry breaking and a solution to the mu/Bmu problem
• A simple model for particle physics and cosmology
• Axionic Mirage Mediation

Cited by in corpus (22)

• Dark matter filtering-out effect during a first-order phase transition
• Fate of Electroweak Vacuum during Preheating
• Gravitational waves from the first order phase transition of the Higgs field at high energy scales
• Fate of $Z_2$ Symmetric Scalar Field
• Higgs inflation and suppression of axion isocurvature perturbation
• High-Scale Axions without Isocurvature from Inflationary Dynamics
• Axion Models with High Scale Inflation
• Inflationary Gravitational Waves and the Evolution of the Early Universe
• Lepto-axiogenesis in minimal SUSY KSVZ model
• Preheating from target space curvature and unitarity violation: Analysis in field space
• Axions as Hot and Cold Dark Matter
• Explosive Axion Production from Saxion
• Electroweak Asymmetric Early Universe via a Scalar Condensate
• Revisiting Isocurvature Bounds on the Minimal QCD Axion
• Particle Production during Inflation in Light of PLANCK
• Damping of an oscillating scalar field indirectly coupled to a thermal bath
• Curvature Perturbation and Domain Wall Formation with Pseudo Scaling Scalar Dynamics
• Non-thermal Axion Dark Radiation and Constraints
• Axino Dark Matter in Moduli-induced Baryogenesis
• High Reheating Temperature without Axion Domain Walls
• Early universe dynamics of PQ field with very small self-coupling and its implications for axion dark matter
• WIMP Meets ALP: Coherent Freeze-Out of Dark Matter