Gauge Boson Signals at the Cosmological Collider

Abstract

We study the production of massive gauge bosons during inflation from the axion-type coupling to the inflaton and the corresponding oscillatory features in the primordial non-Gaussianity. In a window in which both the gauge boson mass and the chemical potential are large, the signal is potentially reachable by near-future large scale structure probes. This scenario covers a new region in oscillation frequency which is not populated by previously known cosmological collider models. We also demonstrate how to properly include the exponential factor and discuss the subtleties in obtaining power dependence of the gauge boson mass in the signal estimate.

25 pages

References in corpus (9)

• Monodromy in the CMB: Gravity Waves and String Inflation
• Large Nongaussianity in Axion Inflation
• N-flationary magnetic fields
• Non-Gaussianity as a Particle Detector
• The photo-philic QCD axion
• Curvature Perturbation Spectrum in Two-field Inflation with a Turning Trajectory
• Higgsed Chromo-Natural Inflation
• Cosmological Signatures of Superheavy Dark Matter
• Cosmological Collider Signatures of Massive Vectors from Non-Gaussian Gravitational Waves

Cited by in corpus (38)

• Completely Dark Photons from Gravitational Particle Production During Inflation
• The Scalar Chemical Potential in Cosmological Collider Physics
• Large Spin-2 Signals at the Cosmological Collider
• Cutting Rule for Cosmological Collider Signals: A Bulk Evolution Perspective
• Phase Information in Cosmological Collider Signals
• Probing Leptogenesis with the Cosmological Collider
• Helical Inflation Correlators: Partial Mellin-Barnes and Bootstrap Equations
• Bootstrapping One-Loop Inflation Correlators with the Spectral Decomposition
• Precision Calculation of Inflation Correlators at One Loop
• Missing Scalars at the Cosmological Collider
• Closed-Form Formulae for Inflation Correlators
• Classical Cosmological Collider Physics and Primordial Features
• Parity-Odd and Even Trispectrum from Axion Inflation
• Galaxy imaging surveys as spin-sensitive detector for cosmological colliders
• Chemical-Potential-Assisted Particle Production in FRW Spacetimes
• Dark photon vortex formation and dynamics
• NANOGrav signal from axion inflation
• Disentangling mass spectra of multiple fields in cosmological collider
• Cosmological Correlators Through the Looking Glass: Reality, Parity, and Factorisation
• Axion Isocurvature Collider
• Gravitational Wave Probes of Massive Gauge Bosons at the Cosmological Collider
• Continuous Spectrum on Cosmological Collider
• A Cosmic Microscope for the Preheating Era
• There and Back Again: Mapping and Factorising Cosmological Observables
• An Effective Cosmological Collider
• Soft limits of the wavefunction in exceptional scalar theories
• Analytic Formulae for Inflationary Correlators with Dynamical Mass
• Cosmological Particle Production and Pairwise Hotspots on the CMB
• The cosmic coincidences of primordial-black-hole dark matter
• The Massive Flat Space Limit of Cosmological Correlators
• Fingerprints of a Non-Inflationary Universe from Massive Fields
• Primordial Clocks within Stochastic Gravitational Wave Anisotropies
• Grand Unification at the Cosmological Collider with Chemical Potential
• Opening up a window on the postinflationary QCD axion
• Baryogenesis from ultra-slow-roll inflation
• Charged Loops at the Cosmological Collider with Chemical Potential
• The cosmological collider in $R^2$ inflation
• Anatomy of Parity-violating Trispectra in Galaxy Surveys