A Cosmological Higgs Collider

Abstract

The quantum fluctuations of the Higgs field during inflation could be a source of primordial density perturbations through Higgs-dependent inflaton decay. By measuring primordial non-Gaussianities, this so-called Higgs-modulated reheating scenario provides us a unique chance to probe Higgs interactions at extremely high energy scale, which we call the Cosmological Higgs Collider (CHC). We realize CHC in a simple scenario where the inflaton decays into Higgs-portal scalars, taking account of the decay of the Higgs fluctuation amplitude after inflation. We also calculate the CHC signals of Standard Model particles, namely their imprints in the squeezed bispectrum, which can be naturally large. The concept of CHC can be straightforwardly generalized to cosmological isocurvature colliders with other types of isocurvature perturbations.

arXiv comment32 pages

References in corpus (35)

• Reheating after Inflation
• Generating the curvature perturbation without an inflaton
• Hybrid Inflation
• A General Analytic Formula for the Spectral Index of the Density Perturbations produced during Inflation
• Brane Inflation
• Universe Reheating after Inflation
• Adiabatic CMB perturbations in pre-big bang string cosmology
• Effects of Cosmological Moduli Fields on Cosmic Microwave Background
• A general proof of the conservation of the curvature perturbation
• Primordial Non-Gaussianities from Inflation Models
• Quasi-Single Field Inflation and Non-Gaussianities
• A new mechanism for generating density perturbations from inflation
• Large non-Gaussianities with Intermediate Shapes from Quasi-Single Field Inflation
• Effective field theory approach to quasi-single field inflation and effects of heavy fields
• Non-Gaussianity as a Particle Detector
• Non-Gaussianity in the modulated reheating scenario
• Primordial Curvature Fluctuation and Its Non-Gaussianity in Models with Modulated Reheating
• Schwinger-Keldysh Diagrammatics for Primordial Perturbations
• Multi-brid inflation and non-Gaussianity
• Inflation, Cosmic Perturbations and Non-Gaussianities
• Standard Model Background of the Cosmological Collider
• Loop Corrections to Standard Model Fields in Inflation
• Heavy-Lifting of Gauge Theories By Cosmic Inflation
• Standard Model Mass Spectrum in Inflationary Universe
• Partially Massless Fields During Inflation
• Neutrino Signatures in Primordial Non-Gaussianities
• Models of the Primordial Standard Clock
• A geometric description of the non-Gaussianity generated at the end of multi-field inflation
• Seeing Higher-Dimensional Grand Unification In Primordial Non-Gaussianities
• Observational Constraints on Gauge Field Production in Axion Inflation
• Fingerprints of Primordial Universe Paradigms as Features in Density Perturbations
• Unique Fingerprints of Alternatives to Inflation in the Primordial Power Spectrum
• Planck constraints on Higgs modulated reheating of renormalization group improved inflation
• Non-Gaussianities from the Standard Model Higgs
• Can Standard Model Higgs Seed the Formation of Structures in Our Universe?

Cited by in corpus (47)

• Probing P and CP Violations on the Cosmological Collider
• Cosmological Collider Physics and the Curvaton
• The Scalar Chemical Potential in Cosmological Collider Physics
• The Higgs Portal to Cosmology
• Gauge Boson Signals at the Cosmological Collider
• 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
• Cosmological Signatures of Superheavy Dark Matter
• Closed-Form Formulae for Inflation Correlators
• Parity-Odd and Even Trispectrum from Axion Inflation
• Classical Cosmological Collider Physics and Primordial Features
• Cosmological Collider Signatures of Massive Vectors from Non-Gaussian Gravitational Waves
• NANOGrav signal from axion inflation
• Disentangling mass spectra of multiple fields in cosmological collider
• Axion Isocurvature Collider
• Gravitational Wave Probes of Massive Gauge Bosons at the Cosmological Collider
• Could PBHs and secondary GWs have originated from squeezed initial states?
• Continuous Spectrum on Cosmological Collider
• A Cosmic Microscope for the Preheating Era
• The Higgs field and early universe cosmology: a (brief) review
• An Effective Cosmological Collider
• The Secret Higgstory of the Highest Temperature during Reheating
• Stochastic evolution of scalar fields with continuous symmetries during inflation
• Analytic Formulae for Inflationary Correlators with Dynamical Mass
• Perturbative unitarity in quasi-single field inflation
• The Massive Flat Space Limit of Cosmological Correlators
• Fingerprints of a Non-Inflationary Universe from Massive Fields
• Large Density Perturbations from Reheating to Standard Model particles due to the Dynamics of the Higgs Boson during Inflation
• Primordial Clocks within Stochastic Gravitational Wave Anisotropies
• Novel mechanism for CMB modulation in the Standard Model
• Anatomy of Parity-violating Trispectra in Galaxy Surveys
• The cosmological collider in $R^2$ inflation
• Abelian Higgs model in power-law inflation: the propagators in the unitary gauge
• Primordial non-Gaussianity from the Effects of the Standard Model Higgs during Reheating after Inflation
• Impact of transforming to Conformal Fermi Coordinates on Quasi-Single Field Non-Gaussianity
• Higgs-like spectator field as the origin of structure
• Cosmological Non-Gaussianity from Neutrino Seesaw Mechanism
• Cosmological Signatures of Neutrino Seesaw Mechanism
• Amplifying the Cosmological Collider with Ghost Spectators
• On the importance of heavy fields in pseudo-scalar inflation
• Non-relativistic Cosmological Collider Signals