Classical Cosmological Collider Physics and Primordial Features

Abstract

Features in the inflationary landscape can inject extra energies to inflation models and produce on-shell particles with masses much larger than the Hubble scale of inflation. This possibility extends the energy reach of the program of cosmological collider physics, in which signals associated with these particles are generically Boltzmann-suppressed. We study the mechanisms of this classical cosmological collider in two categories of primordial features. In the first category, the primordial feature is classical oscillation, which includes the case of coherent oscillation of a massive field and the case of oscillatory features in the inflationary potential. The second category includes any sharp feature in the inflation model. All these classical features can excite unsuppressed quantum modes of other heavy fields which leave observational signatures in primordial non-Gaussianities, including the information about the particle spectra of these heavy degrees of freedom.

arXiv comment49 pages, 14 figures. Changes in v2: clarifications added. Matches the version published in JCAP

References in corpus (100)

• Non-Gaussian features of primordial fluctuations in single field inflationary models
• Planck 2018 results. X. Constraints on inflation
• Towards the Theory of Reheating After Inflation
• Non-Gaussianity from Inflation: Theory and Observations
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Implications for Inflation
• Quantum Contributions to Cosmological Correlations
• Primordial Non-Gaussianities from Inflation Models
• Quasi-Single Field Inflation and Non-Gaussianities
• Oscillations in the CMB from Axion Monodromy Inflation
• Features of heavy physics in the CMB power spectrum
• Inflationary perturbations from a potential with a step
• Signatures of Supersymmetry from the Early Universe
• On Soft Limits of Inflationary Correlation Functions
• Large non-Gaussianities with Intermediate Shapes from Quasi-Single Field Inflation
• Generation and Characterization of Large Non-Gaussianities in Single Field Inflation
• On non-gaussianities in single-field inflation
• Beauty is Attractive: Moduli Trapping at Enhanced Symmetry Points
• Cosmological Collider Physics
• Probing Planckian physics: resonant production of particles during inflation and features in the primordial power spectrum
• Effective field theory approach to quasi-single field inflation and effects of heavy fields
• Non-Gaussianity as a Particle Detector
• Features and New Physical Scales in Primordial Observables: Theory and Observation
• Resonant Non-Gaussianity
• Primordial non-Gaussianity and Bispectrum Measurements in the Cosmic Microwave Background and Large-Scale Structure
• Quasi-Single Field Inflation with Large Mass
• The Cosmological Bootstrap: Weight-Shifting Operators and Scalar Seeds
• Schwinger-Keldysh Diagrammatics for Primordial Perturbations
• Inflation, Cosmic Perturbations and Non-Gaussianities
• Productive Interactions: heavy particles and non-Gaussianity
• Prospects for Cosmological Collider Physics
• Standard Model Background of the Cosmological Collider
• Curvature Perturbation Spectrum in Two-field Inflation with a Turning Trajectory
• Folded Resonant Non-Gaussianity in General Single Field Inflation
• Loop Corrections to Standard Model Fields in Inflation
• Duality Cascade in Brane Inflation
• Heavy-Lifting of Gauge Theories By Cosmic Inflation
• Standard Model Mass Spectrum in Inflationary Universe
• Equilateral non-Gaussianity from heavy fields
• Cosmological Fluctuations from Infra-Red Cascading During Inflation
• In Search of Large Signals at the Cosmological Collider
• Imprints of Massive Primordial Fields on Large-Scale Structure
• Probing P and CP Violations on the Cosmological Collider
• Quasi Single Field Inflation in the non-perturbative regime
• On the Inflationary Perturbations of Massive Higher-Spin Fields
• Boostless Cosmological Collider Bootstrap
• Effects and Detectability of Quasi-Single Field Inflation in the Large-Scale Structure and Cosmic Microwave Background
• Cosmological Collider Physics and the Curvaton
• Neutrino Signatures in Primordial Non-Gaussianities
• Searches for other vacua II: A new Higgstory at the cosmological collider
• Galaxy Bispectrum from Massive Spinning Particles
• Models of the Primordial Standard Clock
• Inflation: Theory and Observations
• Standard Clock in Primordial Density Perturbations and Cosmic Microwave Background
• The Scalar Chemical Potential in Cosmological Collider Physics
• A Cosmological Higgs Collider
• Seeing Higher-Dimensional Grand Unification In Primordial Non-Gaussianities
• Higher Spin Supersymmetry at the Cosmological Collider: Sculpting SUSY Rilles in the CMB
• Gauge Boson Signals at the Cosmological Collider
• The Effective Field Theory of Inflation Models with Sharp Features
• Fingerprints of Primordial Universe Paradigms as Features in Density Perturbations
• Minimal signatures of the Standard Model in non-Gaussianities
• Large Spin-2 Signals at the Cosmological Collider
• Phase Information in Cosmological Collider Signals
• Non-Gaussian Enhancements of Galactic Halo Correlations in Quasi-Single Field Inflation
• Cutting Rule for Cosmological Collider Signals: A Bulk Evolution Perspective
• Probing Leptogenesis with the Cosmological Collider
• Scratches from the Past: Inflationary Archaeology through Features in the Power Spectrum of Primordial Fluctuations
• Strongly Coupled Quasi-Single Field Inflation
• Prospects for constraining the shape of non-Gaussianity with the scale-dependent bias
• Large-Field Inflation and the Cosmological Collider
• Precision Calculation of Inflation Correlators at One Loop
• Missing Scalars at the Cosmological Collider
• Cosmological Signatures of Superheavy Dark Matter
• Cosmological Collider Signatures of Massive Vectors from Non-Gaussian Gravitational Waves
• Galaxy imaging surveys as spin-sensitive detector for cosmological colliders
• Searching for Standard Clocks in the Primordial Universe
• Chemical-Potential-Assisted Particle Production in FRW Spacetimes
• Oscillatory features in the curvature power spectrum after a sudden turn of the inflationary trajectory
• High Energy Physics Signatures from Inflation and Conformal Symmetry of de Sitter
• Quantum Primordial Standard Clocks
• Disentangling mass spectra of multiple fields in cosmological collider
• On the inflationary massive field with a curved field manifold
• Spectroscopy of Masses and Couplings during Inflation
• Uncovering the History of Cosmic Inflation from Anomalies in Cosmic Microwave Background Spectra
• Higgs as heavy-lifted physics during inflation
• Quantum Standard Clocks in the Primordial Trispectrum
• Warm Quasi-Single Field Inflation
• Axion Isocurvature Collider
• Resonant Signatures of Heavy Scalar Fields in the Cosmic Microwave Background
• Heavy Particle Signatures in Cosmological Correlation Functions with Tensor Modes
• Primordial spectra from sudden turning trajectory
• Probing Two-Field Open Inflation by Resonant Signals in Correlation Functions
• Primordial Standard Clock Models and CMB Residual Anomalies
• Comparing multi-field primordial feature models with the Planck data
• Localized Features in Non-Gaussianity from Heavy Physics
• A Cosmic Microscope for the Preheating Era
• Mimicking alternatives to inflation with interacting spectator fields
• Power-law modulation of the scalar power spectrum from a heavy field with a monomial potential
• Cosmological Particle Production and Pairwise Hotspots on the CMB
• Non-Gaussianity from $X,Y$ gauge bosons in Cosmological Collider Physics

Cited by in corpus (23)

• Cosmological Bootstrap in Slow Motion
• Bootstrapping Multi-Field Inflation: non-Gaussianities from light scalars revisited
• Helical Inflation Correlators: Partial Mellin-Barnes and Bootstrap Equations
• Bootstrapping One-Loop Inflation Correlators with the Spectral Decomposition
• Closed-Form Formulae for Inflation Correlators
• Parity-Odd and Even Trispectrum from Axion Inflation
• NANOGrav signal from axion inflation
• Searching for Cosmological Collider in the Planck CMB Data
• Gravitational Wave Probes of Massive Gauge Bosons at the Cosmological Collider
• Continuous Spectrum on Cosmological Collider
• A Cosmological Bootstrap for Resonant Non-Gaussianity
• Back to the features: assessing the discriminating power of future CMB missions on inflationary models
• There and Back Again: Mapping and Factorising Cosmological Observables
• Probing the initial state of inflation: analytical structure of cosmological correlators
• An Effective Cosmological Collider
• Analytic Formulae for Inflationary Correlators with Dynamical Mass
• The Massive Flat Space Limit of Cosmological Correlators
• Fingerprints of a Non-Inflationary Universe from Massive Fields
• Primordial Clocks within Stochastic Gravitational Wave Anisotropies
• The cosmological collider in $R^2$ inflation
• Investigating the Origin of CMB Large-Scale Features Using LiteBIRD and CMB-S4
• The UV Sensitivity of Axion Monodromy Inflation
• Non-Gaussianity from explicit $U(1)$-breaking interactions