Instant preheating in a scale invariant two measures theory
arXiv:2005.14151 · doi:10.1103/PhysRevD.103.123515
Abstract
The instant preheating mechanism in the framework of a scale invariant two measures theory is studied. We introduce this mechanism into a non oscillating inflationary model as another possible solution to the reheating of the universe in this theory. In this framework, we consider that the model includes two scalar matter fields, the first a dilaton field, that transforms under scale transformations and it will be considered also as the field that drives inflation and the second, a scalar field which will interact with the inflaton through an effective potential. By assuming this interaction term, we obtain a scenario of instant radiation or decay of particles according to the domain the effective mass of the field that interacts with the inflaton. Also, we consider a scale invariant Yukawa interaction and then after performing the transition to the physical Einstein frame we obtain an expression for the decay rate from our scalar field going into two fermions. Besides, from specific decay rates, different constraints and bounds for the coupling parameters associated with our model are found.
arXiv comment24 pages
References in corpus (49)
- Towards the Theory of Reheating After Inflation
- Particle Physics Models of Inflation and the Cosmological Density Perturbation
- Reheating after Inflation
- Generating the curvature perturbation without an inflaton
- Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Power Spectra and WMAP-Derived Parameters
- Inflation Dynamics and Reheating
- Universe Reheating after Inflation
- Quintessential inflation
- Reheating in Inflationary Cosmology: Theory and Applications
- Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Are There Cosmic Microwave Background Anomalies?
- The Emergent Universe: inflationary cosmology with no singularity
- Instant Preheating
- Particle physics models of inflation and curvaton scenarios
- The Emergent Universe: An Explicit Construction
- Aspects of Tachyonic Inflation with Exponential Potential
- Inflation and Preheating in NO models
- Problems with Tachyon Inflation
- Scale invariance, new inflation and decaying Lambda terms
- Turning Around the Sphaleron Bound: Electroweak Baryogenesis in an Alternative Post-inflationary Cosmology
- Thermalization after/during Reheating
- Dynamical measure and field theory models free of the cosmological constant problem
- Curvaton Reheating in Non-oscillatory Inflationary Models
- Instant Preheating in Quintessential Inflation with -Attractors
- Thermalization Process after Inflation and Effective Potential of Scalar Field
- Non-minimal gravitational reheating during kination
- Ricci Reheating
- Emergent Cosmology, Inflation and Dark Energy
- Curvaton reheating: an application to braneworld inflation
- Inflation and Transition to a Slowly Accelerating Phase from S.S.B. of Scale Invariance
- Reheating in quintessential inflation via gravitational production of heavy massive particles: A detailed analysis
- Curvaton reheating allows TeV Hubble scale in NO inflation
- Emergent Universe from Scale Invariant Two Measures Theory
- Preheating in Quintessential Inflation
- Curvaton reheating in tachyonic inflationary models
- Constraints on generating the primordial curvature perturbation and non-Gaussianity from instant preheating
- Curvaton reheating in logamediate inflationary model
- Generating the curvature perturbation with instant preheating
- Curvaton field and intermediate inflationary universe model
- Emerging Universe from Scale Invariance
- Connecting The Non-Singular Origin of the Universe, The Vacuum Structure and The Cosmological Constant Problem
- Curvaton reheating in tachyonic braneworld inflation
- Baryogenesis in the paradigm of quintessential inflation
- Quintessential Inflation from Lorentzian Slow Roll
- Different reheating mechanisms in quintessence inflation
- Extended Curvaton reheating in inflationary models
- Curvaton reheating in a Scale Invariant Two Measures Theory
- General relativity as an extended canonical gauge theory
- The spectrum of Gravitational Waves, their overproduction in quintessential inflation and its influence in the reheating temperature
- Shape of the inflaton potential and the efficiency of the universe heating
Cited by in corpus (4)
- Unifying Inflation with early and late Dark Energy in Multi-Fields: Spontaneously broken scale invariant TMT
- Relic gravitons from stiff curvature perturbations
- Exploring Cosmological Implications of the Modified Raychaudhuri Equation in Non-Gravitating Vacuum Energy Theory
- Inflation in a scalar-vector gravity theory