Non-Gaussianity as a Particle Detector

Abstract

We study the imprints of massive particles with spin on cosmological correlators. Using the framework of the effective field theory of inflation, we classify the couplings of these particles to the Goldstone boson of broken time translations and the graviton. We show that it is possible to generate observable non-Gaussianity within the regime of validity of the effective theory, as long as the masses of the particles are close to the Hubble scale and their interactions break the approximate conformal symmetry of the inflationary background. We derive explicit shape functions for the scalar and tensor bispectra that can serve as templates for future observational searches.

55 pages, 10 figures

References in corpus (33)

• Non-Gaussian features of primordial fluctuations in single field inflationary models
• The Effective Field Theory of Inflation
• Causality, Analyticity and an IR Obstruction to UV Completion
• BICEP2 / Keck Array VI: Improved Constraints On Cosmology and Foregrounds When Adding 95 GHz Data From Keck Array
• Single field consistency relation for the 3-point function
• Quasi-Single Field Inflation and Non-Gaussianities
• Measuring the Small-Scale Power Spectrum of Cosmic Density Fluctuations Through 21 cm Tomography Prior to the Epoch of Structure Formation
• On Soft Limits of Inflationary Correlation Functions
• Gauge Invariances and Phases of Massive Higher Spins in (A)dS
• Neutrino Physics from the Cosmic Microwave Background and Large Scale Structure
• Effective field theory approach to quasi-single field inflation and effects of heavy fields
• The Effective Field Theory of Multifield Inflation
• On the consistency relation of the 3-point function in single field inflation
• Conformal consistency relations for single-field inflation
• Equilateral Non-Gaussianity and New Physics on the Horizon
• Quasi-Single Field Inflation with Large Mass
• An Infinite Set of Ward Identities for Adiabatic Modes in Cosmology
• Resilience of the standard predictions for primordial tensor modes
• The (not so) squeezed limit of the primordial 3-point function
• Dominance of gauge artifact in the consistency relation for the primordial bispectrum
• Curvature Perturbation Spectrum in Two-field Inflation with a Turning Trajectory
• A model with cosmological Bell inequalities
• Arbitrary Spin Representations in de Sitter from dS/CFT with Applications to dS Supergravity
• Imprints of Massive Primordial Fields on Large-Scale Structure
• Constraints from Conformal Symmetry on the Three Point Scalar Correlator in Inflation
• Effective Theory of Large-Scale Structure with Primordial Non-Gaussianity
• Slavnov-Taylor Identities for Primordial Perturbations
• Inflationary Consistency Conditions from a Wavefunctional Perspective
• Tensor Squeezed Limits and the Higuchi Bound
• On CMB B-Mode Non-Gaussianity
• Cosmic Decoherence: Massive Fields
• Effective Theory of Squeezed Correlation Functions
• The Cosmological Slavnov-Taylor Identity from BRST Symmetry in Single-Field Inflation

Cited by in corpus (175)

• The Simons Observatory: Science goals and forecasts
• Large-Scale Galaxy Bias
• Probing Ultralight Bosons with Binary Black Holes
• Bootstrapping Inflationary Correlators in Mellin Space
• A Mellin Space Approach to Cosmological Correlators
• Schwinger-Keldysh Diagrammatics for Primordial Perturbations
• Exploring Cosmic Origins with CORE: Inflation
• Standard Model Background of the Cosmological Collider
• Prospects for Cosmological Collider Physics
• Linking the Singularities of Cosmological Correlators
• From Locality and Unitarity to Cosmological Correlators
• Parity breaking signatures from a Chern-Simons coupling during inflation: the case of non-Gaussian gravitational waves
• Heavy-Lifting of Gauge Theories By Cosmic Inflation
• Standard Model Mass Spectrum in Inflationary Universe
• Partially Massless Fields During Inflation
• In Search of Large Signals at the Cosmological Collider
• Probing P and CP Violations on the Cosmological Collider
• On the Inflationary Perturbations of Massive Higher-Spin Fields
• The Inflationary Wavefunction from Analyticity and Factorization
• Boostless Cosmological Collider Bootstrap
• Quantum loop effects on the power spectrum and constraints on primordial black holes
• Cosmological Collider Physics and the Curvaton
• Neutrino Signatures in Primordial Non-Gaussianities
• Searches for other vacua II: A new Higgstory at the cosmological collider
• Light Particles with Spin in Inflation
• Galaxy Bispectrum from Massive Spinning Particles
• Galileon inflation evades the no-go for PBH formation in the single-field framework
• Cosmological Bootstrap in Slow Motion
• The Scalar Chemical Potential in Cosmological Collider Physics
• A Cosmological Higgs Collider
• No-go for the formation of heavy mass Primordial Black Holes in Single Field Inflation
• Seeing Higher-Dimensional Grand Unification In Primordial Non-Gaussianities
• Bootstrapping Multi-Field Inflation: non-Gaussianities from light scalars revisited
• Higher Spin Supersymmetry at the Cosmological Collider: Sculpting SUSY Rilles in the CMB
• Shapes of gravity: Tensor non-Gaussianity and massive spin-2 fields
• Gauge Boson Signals at the Cosmological Collider
• Minimal signatures of the Standard Model in non-Gaussianities
• Parity violation in the scalar trispectrum: no-go theorems and yes-go examples
• Large Spin-2 Signals at the Cosmological Collider
• Phase Information in Cosmological Collider Signals
• Cutting Rule for Cosmological Collider Signals: A Bulk Evolution Perspective
• Probing Leptogenesis with the Cosmological Collider
• Helical Inflation Correlators: Partial Mellin-Barnes and Bootstrap Equations
• Bootstrapping One-Loop Inflation Correlators with the Spectral Decomposition
• Imprints of Spinning Particles on Primordial Cosmological Perturbations
• Strongly Coupled Quasi-Single Field Inflation
• Precision Calculation of Inflation Correlators at One Loop
• Large-Field Inflation and the Cosmological Collider
• Revisiting non-Gaussianity in multifield inflation with curved field space
• Time-sliced perturbation theory with primordial non-Gaussianity and effects of large bulk flows on inflationary oscillating features
• Gravitational Production of Superheavy Dark Matter and Associated Cosmological Signatures
• An étude of momentum space scalar amplitudes in AdS
• Detecting higher spin fields through statistical anisotropy in the CMB and galaxy power spectra
• Scale-Dependent Galaxy Bias from Massive Particles with Spin during Inflation
• Missing Scalars at the Cosmological Collider
• Non-Gaussianity from Axion-Gauge Fields Interactions during Inflation
• Primordial Gravitational Waves from Galaxy Intrinsic Alignments
• Cosmological Signatures of Superheavy Dark Matter
• A Bound on Massive Higher Spin Particles
• Closed-Form Formulae for Inflation Correlators
• Parity-Odd and Even Trispectrum from Axion Inflation
• Classical Cosmological Collider Physics and Primordial Features
• Inflationary soft theorems revisited: A generalized consistency relation
• Landscape tomography through primordial non-Gaussianity
• Cosmological Collider Signatures of Massive Vectors from Non-Gaussian Gravitational Waves
• Inflationary flavor oscillations and the cosmic spectroscopy
• The Hunt for Primordial Interactions in the Large Scale Structures of the Universe
• Galaxy imaging surveys as spin-sensitive detector for cosmological colliders
• Chemical-Potential-Assisted Particle Production in FRW Spacetimes
• Capturing Non-Gaussianity of the Large-Scale Structure with Weighted Skew-Spectra
• Catastrophic Production of Slow Gravitinos
• Partially Massless Higher-Spin Theory
• NANOGrav signal from axion inflation
• The Cosmological Bootstrap: Spinning Correlators from Symmetries and Factorization
• Towards the higher point holographic momentum space amplitudes II: Gravitons
• Unique Fingerprints of Alternatives to Inflation in the Primordial Power Spectrum
• Disentangling mass spectra of multiple fields in cosmological collider
• Graviton non-Gaussianities and Parity Violation in the EFT of Inflation
• On the Effective Field Theory for Quasi-Single Field Inflation
• Constraining chameleon field driven warm inflation with Planck 2018 data
• Imprints of Oscillatory Bispectra on Galaxy Clustering
• On the inflationary massive field with a curved field manifold
• Biasing and the search for primordial non-Gaussianity beyond the local type
• The Open Effective Field Theory of Inflation
• Heavy Spinning Particles from Signs of Primordial Non-Gaussianities: Beyond the Positivity Bounds
• Warm Quasi-Single Field Inflation
• Quantum Standard Clocks in the Primordial Trispectrum
• Higgs as heavy-lifted physics during inflation
• Axion Isocurvature Collider
• Cosmological Correlators Through the Looking Glass: Reality, Parity, and Factorisation
• Multifield inflation beyond $N_{\mathrm{field}}=2$: non-Gaussianities and single-field effective theory
• Probing the inflationary particle content: extra spin-2 field
• Cosmological Shapes of Higher-Spin Gravity
• Heavy Particle Signatures in Cosmological Correlation Functions with Tensor Modes
• Searching for Cosmological Collider in the Planck CMB Data
• Gravitational Wave Probes of Massive Gauge Bosons at the Cosmological Collider
• Imprint of anisotropic primordial non-Gaussianity on halo intrinsic alignments in simulations
• Detecting higher spin fields through statistical anisotropy in the CMB bispectrum
• Intrinsic galaxy alignment from angular dependent primordial non-Gaussianity
• Constraints on holographic multi-field inflation and models based on the Hamilton-Jacobi formalism
• Precise and Accurate Cosmology with CMBxLSS Power Spectra and Bispectra
• Tensor non-Gaussianities from Non-minimal Coupling to the Inflaton
• Continuous Spectrum on Cosmological Collider
• The Power of Locality: Primordial Non-Gaussianity at the Map Level
• Spinor-Helicity Formalism for Massless Fields in AdS${}_4$ II: Potentials
• Fundamental limits on constraining primordial non-Gaussianity
• Constraints on anisotropic primordial non-Gaussianity from intrinsic alignments of SDSS-III BOSS galaxies
• Large fluctuations and Primordial Black Holes
• A Cosmic Microscope for the Preheating Era
• FRW and domain walls in higher spin gravity
• Induced superhorizon tensor perturbations from anisotropic non-Gaussianity
• Constraints on long-lived, higher-spin particles from galaxy bispectrum
• Non-Gaussianities in Collider Energy Flux
• Light Fields during Inflation from BOSS and Future Galaxy Surveys
• CMB B-mode non-Gaussianity: optimal bispectrum estimator and Fisher forecasts
• Primordial non-Gaussianity and non-Gaussian Covariance
• There and Back Again: Mapping and Factorising Cosmological Observables
• Positivity in the effective field theory of cosmological perturbations
• CosmoFlow: Python Package for Cosmological Correlators
• Possible Signatures of Inflationary Particle Content: Spin-2 Fields
• Primordial trispectrum from kSZ tomography
• In-in formalism for the entropy of quantum fields in curved spacetimes
• An Effective Cosmological Collider
• Large gauge transformation, Soft theorem, and Infrared divergence in inflationary spacetime
• Cosmological Angular Trispectra and Non-Gaussian Covariance
• A simple, exact, model of quasi-single field inflation
• Analytic Formulae for Inflationary Correlators with Dynamical Mass
• Soft limits of the wavefunction in exceptional scalar theories
• Leptogenesis from spontaneous symmetry breaking during inflation
• Improving constraints on primordial non-Gaussianity using neural network based reconstruction
• Perturbative unitarity in quasi-single field inflation
• Opening the reheating box in multifield inflation
• Anisotropic separate universe and Weinberg's adiabatic mode
• Cosmology from the kinetic polarized Sunyaev Zel'dovich effect
• Conformal partial waves in momentum space
• Heavy Fields and Gravity
• Inflationary Adler Conditions
• The Massive Flat Space Limit of Cosmological Correlators
• Non-Gaussianities in a two-field generalization of Natural Inflation
• Non-Gaussian CMB and LSS statistics beyond polyspectra
• Uncorrelated Compensated Isocurvature Perturbations from kSZ Tomography
• Fingerprints of a Non-Inflationary Universe from Massive Fields
• Grand Unification at the Cosmological Collider with Chemical Potential
• Primordial Tensor Non-Gaussianity from Massive Gravity
• Supergravity, $\alpha$-attractors and primordial non-Gaussianity
• The Renormalization Group for Large-Scale Structure: Primordial non-Gaussianities
• A Flat Space Analogue for the Quantum Origin of Structure
• Searching for Bispectrum of Stochastic Gravitational Waves with Pulsar Timing Arrays
• Improving Constraints on Inflation with CMB Delensing
• The cosmological collider in $R^2$ inflation
• Constraining graviton non-Gaussianity through the CMB bispectra
• Bispectrum Islands
• Charged Loops at the Cosmological Collider with Chemical Potential
• Non-Gaussianities in generalized non-local $R^2$-like inflation
• Schwinger-Keldysh mechanism in extended quasi single field inflation
• Inflationary non-Gaussianities in alpha vacua and consistency with conformal symmetries
• Magnetic Fields from Compensated Isocurvature Perturbations
• Origin of ultra-light fields during inflation and their suppressed non-Gaussianity
• Influence of Unobservable Modes on Correlation Functions during Inflation
• Strongly Coupled Sectors in Inflation: Gapless Theories and Unparticles
• Cosmological Non-Gaussianity from Neutrino Seesaw Mechanism
• Dark Walker in the Early Universe: A Strongly Coupled Sector Model
• Strongly Coupled Sectors in Inflation: Gapped Theories of Unparticles
• A Match Made in Heaven: Linking Observables in Inflationary Cosmology
• Constant-rate inflation: primordial black holes from conformal weight transitions
• The UV Sensitivity of Axion Monodromy Inflation
• The hand-made tail: Non-perturbative tails from multifield inflation
• Precision calculation of the EFT likelihood with primordial non-Gaussianities
• Amplifying the Cosmological Collider with Ghost Spectators
• Propagator positivity bounds for cosmological correlators
• On the importance of heavy fields in pseudo-scalar inflation
• Searching for Unparticles with the Cosmic Microwave Background
• Polarized solitons in higher-spin wave dark matter
• Non-relativistic Cosmological Collider Signals
• Manifestly Unitary Cosmological Perturbation Theory