Profiling Cold New Early Dark Energy

Abstract

Recent interest in New Early Dark Energy (NEDE), a cosmological model with a vacuum energy component decaying in a triggered phase transition around recombination, has been sparked by its impact on the Hubble tension. Previous constraints on the model parameters were derived in a Bayesian framework with Markov-chain Monte Carlo (MCMC) methods. In this work, we instead perform a frequentist analysis using the profile likelihood in order to assess the impact of prior volume effects on the constraints. We constrain the maximal fraction of NEDE $f_{\mathrm{NEDE}}$, finding $f_{\mathrm{NEDE}}=0.076_{-0.035}^{+0.040}$ at $68\%$ CL with our baseline dataset and similar constraints using either data from SPT-3G, ACT or full-shape large-scale structure, showing a preference over $\Lambda$CDM even in the absence of a SH0ES prior on $H_0$. While this is stronger evidence for NEDE than obtained with the corresponding Bayesian analysis, our constraints broadly match those obtained by fixing the NEDE trigger mass. Including the SH0ES prior on $H_0$, we obtain $f_{\mathrm{NEDE}}=0.136_{-0.026}^{+0.024}$ at $68\%$ CL. Furthermore, we compare NEDE with the Early Dark Energy (EDE) model, finding similar constraints on the maximal energy density fractions and $H_0$ in the two models. At $68\%$ CL in the NEDE model, we find $H_0=69.56_{-1.29}^{+1.16}{\text{ km s}}^{-1}{\text{ Mpc}}^{-1}$ with our baseline and $H_0=71.62_{-0.76}^{+0.78}{\text{ km s}}^{-1}{\text{ Mpc}}^{-1}$ when including the SH0ES measurement of $H_0$, thus corroborating previous conclusions that the NEDE model provides a considerable alleviation of the $H_0$ tension.

arXiv comment14 pages, 7 figures, 1 table

References in corpus (55)

• A Unified Approach to the Classical Statistical Analysis of Small Signals
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample
• The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
• The 6dF Galaxy Survey: Baryon Acoustic Oscillations and the Local Hubble Constant
• A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km/s/Mpc Uncertainty from the Hubble Space Telescope and the SH0ES Team
• The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
• The Clustering of the SDSS DR7 Main Galaxy Sample I: A 4 per cent Distance Measure at z=0.15
• Cosmological Perturbation Theory in the Synchronous vs. Conformal Newtonian Gauge
• Cosmological Perturbation Theory in the Synchronous and Conformal Newtonian Gauges
• Dark Energy Survey Year 3 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
• Early Dark Energy Can Resolve The Hubble Tension
• Conservative Constraints on Early Cosmology: an illustration of the Monte Python cosmological parameter inference code
• The trouble with $H_0$
• The Hubble Hunter's Guide
• The Atacama Cosmology Telescope: DR4 Maps and Cosmological Parameters
• Cosmology Intertwined II: The Hubble Constant Tension
• The $H_0$ Olympics: A fair ranking of proposed models
• The effects of He I 10830 on helium abundance determinations
• Early dark energy, the Hubble-parameter tension, and the string axiverse
• Oscillating scalar fields and the Hubble tension: a resolution with novel signatures
• Early Dark Energy Does Not Restore Cosmological Concordance
• SPT-3G: A Next-Generation Cosmic Microwave Background Polarization Experiment on the South Pole Telescope
• Cosmological implications of ultra-light axion-like fields
• The Atacama Cosmology Telescope: A Measurement of the Cosmic Microwave Background Power Spectra at 98 and 150 GHz
• To H0 or not to H0?
• Constraining Early Dark Energy with Large-Scale Structure
• Resolving the Hubble Tension with New Early Dark Energy
• Sounds Discordant: Classical Distance Ladder & $\Lambda$CDM -based Determinations of the Cosmological Sound Horizon
• Concordance and Discordance in Cosmology
• New Early Dark Energy
• On the use of the local prior on the absolute magnitude of Type Ia supernovae in cosmological inference
• Can Late Dark Energy Transitions Raise the Hubble constant?
• Early dark energy is not excluded by current large-scale structure data
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: BAO measurement from the LOS-dependent power spectrum of DR12 BOSS galaxies
• Limits on $w$CDM from the EFTofLSS with the PyBird code
• The Hubble Tension in Light of the Full-Shape Analysis of Large-Scale Structure Data
• Early dark energy resolution to the Hubble tension in light of weak lensing surveys and lensing anomalies
• The Atacama Cosmology Telescope: Constraints on Pre-Recombination Early Dark Energy
• New constraint on Early Dark Energy from Planck and BOSS data using the profile likelihood
• Dark Energy at early times and ACT: a larger Hubble constant without late-time priors
• Restoring cosmological concordance with early dark energy and massive neutrinos?
• Interacting radiation after Planck and its implications for the Hubble Tension
• BOSS Correlation Function Analysis from the Effective Field Theory of Large-Scale Structure
• New Early Dark Energy is compatible with current LSS data
• A fast test to assess the impact of marginalization in Monte Carlo analyses, and its application to cosmology
• Cosmological Constraints on Interacting Light Particles
• Consistency of effective field theory analyses of the BOSS power spectrum
• Updated constraints from the effective field theory analysis of BOSS power spectrum on Early Dark Energy
• Hot New Early Dark Energy
• Dark Energy, $H_0$ and Weak Gravity Conjecture
• Chain Early Dark Energy: Solving the Hubble Tension and Explaining Today's Dark Energy
• Hot New Early Dark Energy: Towards a Unified Dark Sector of Neutrinos, Dark Energy and Dark Matter
• Stochastic optimization methods for extracting cosmological parameters from CMBR power spectra
• A grounded perspective on New Early Dark Energy using ACT, SPT, and BICEP/Keck
• Pseudoscalar sterile neutrino self-interactions in light of Planck, SPT and ACT data

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• Seven hints that early-time new physics alone is not sufficient to solve the Hubble tension
• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Observational constraints on early dark energy
• Cold New Early Dark Energy pulls the trigger on the $H_0$ and $S_8$ tensions: a simultaneous solution to both tensions without new ingredients
• Cosmological constraints on early dark energy from the full shape analysis of eBOSS DR16
• Profile Likelihoods in Cosmology: When, Why and How illustrated with $\Lambda$CDM, Massive Neutrinos and Dark Energy
• Testing the $n_s-H_0$ scaling relation with Planck-independent CMB data
• Hints of Neutrino Dark Matter scattering in the CMB? Constraints from the Marginalized and Profile Distributions
• Fast and effortless computation of profile likelihoods using CONNECT
• One Extension to Explain Them All, One Scale-Invariant Spectrum to Test Them All, and in One Model Bind Them
• Constraining the quintessential $\alpha$-attractor inflation through dynamical horizon exit method
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