Lensing amplitude anomaly and varying electron mass alleviate the Hubble and $S_8$ tensions

Abstract

Cosmological measurements have revealed tensions within the standard $\Lambda$CDM model, notably discrepancies in the Hubble constant and $S_8$ parameter. A modified recombination scenario involving a time-varying electron mass has been proposed as a feasible solution to the Hubble tension without exacerbating the $S_8$ tension. Recent observations have further revealed other potential deviations from the $\Lambda$CDM framework, such as non-flat spatial curvature and an anomalous CMB lensing amplitude. In this study, we explore whether introducing a variation in the electron mass $m_e$, allowing non-zero spatial curvature ${\Omega }_K$, and a free lensing amplitude $A_{\mathrm{lens}}$ can resolve these persistent tensions. Using the Planck Public Release (PR) 3 and ACT power spectra, Planck PR4 and ACT lensing maps, together with BAO measurements from DESI DR2, we obtain $H_0=69.61_{-0.55}^{+0.60}\mathrm{km}{\mathrm{s}}^{-1}\mathrm{Mp}{\mathrm{c}}^{-1}$ and $S_8=0.808\pm 0.012$, with $\Delta m_e/m_e=0.0109_{-0.0066}^{+0.0068}$ and $A_{\mathrm{lens}}=1.030_{-0.037}^{+0.039}$, both exceeding the $\Lambda$CDM expectations. We find no indication of spatial curvature deviating from flatness, even when including the Cosmic Chronometers and SNe Ia samples. However, when adopting the latest Planck power spectra likelihoods, NPIPE and HiLLiPoP, we obtain lower electron masses with $\Delta m_e/m_e=-0.0063_{-0.0099}^{+0.0095}$ and $-0.0095_{-0.0079}^{+0.0078}$, relieving the $S_8$ tension only. The lensing amplitude remains anomalously high, with $A_{\mathrm{lens}}=1.053_{-0.040}^{+0.042}$ and $1.075_{-0.043}^{+0.044}$. Our results point to a promising direction for cosmological models to reconcile the aforementioned discrepancies, although more precise data from future experiments will be necessary to clarify the aforementioned modifications.

28 pages, 7 figures, 6 tables. Added Planck PR4 likelihoods. Accepted for publication in JCAP

References in corpus (58)

• 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
• In the Realm of the Hubble tension $-$ a Review of Solutions
• The Pantheon+ Analysis: Cosmological Constraints
• Dark Energy Survey Year 3 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
• DESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations
• The Pantheon+ Analysis: The Full Dataset and Light-Curve Release
• Challenges for $\Lambda$CDM: An update
• Cosmological Evolution of a Quintom Model of Dark Energy
• Cosmic Distances Calibrated to 1% Precision with Gaia EDR3 Parallaxes and Hubble Space Telescope Photometry of 75 Milky Way Cepheids Confirm Tension with LambdaCDM
• Planck evidence for a closed Universe and a possible crisis for cosmology
• Euclid. I. Overview of the Euclid mission
• DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints
• The $H_0$ Olympics: A fair ranking of proposed models
• On the Hubble constant tension in the SNe Ia Pantheon sample
• Seven hints that early-time new physics alone is not sufficient to solve the Hubble tension
• The Atacama Cosmology Telescope: DR6 Gravitational Lensing Map and Cosmological Parameters
• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Bouncing Universe with Quintom Matter
• Cosmic Microwave Weak lensing data as a test for the dark universe
• CMB power spectra and cosmological parameters from Planck PR4 with CamSpec
• Eppur è piatto? The cosmic chronometer take on spatial curvature and cosmic concordance
• Cosmological parameters derived from the final (PR4) Planck data release
• Non-parametric spatial curvature inference using late-universe cosmological probes
• Nested Sampling with Normalising Flows for Gravitational-Wave Inference
• Is Local $H_0$ At Odds With Dark Energy EFT?
• Revealing Intrinsic Flat $\Lambda$CDM Biases with Standardizable Candles
• KiDS-Legacy: Cosmological constraints from cosmic shear with the complete Kilo-Degree Survey
• Updated Cosmological Constraints in Extended Parameter Space with Planck PR4, DESI Baryon Acoustic Oscillations, and Supernovae: Dynamical Dark Energy, Neutrino Masses, Lensing Anomaly, and the Hubble Tension
• Dark energy in light of the early JWST observations: case for a negative cosmological constant?
• Cosmic chronometers to calibrate the ladders and measure the curvature of the Universe. A model-independent study
• Late time approaches to the Hubble tension deforming $H(z)$, worsen the growth tension
• An overview of what current data can (and cannot yet) say about evolving dark energy
• Evidence of a decreasing trend for the Hubble constant
• High-Redshift Galaxies from Early JWST Observations: Constraints on Dark Energy Models
• Cosmology in Extended Parameter Space with DESI Data Release 2 Baryon Acoustic Oscillations: A 2$\sigma$+ Detection of Nonzero Neutrino Masses with an Update on Dynamical Dark Energy and Lensing Anomaly
• Dynamical Dark Energy Beyond Planck? Constraints from multiple CMB probes, DESI BAO and Type-Ia Supernovae
• Dynamical Dark Energy in light of the DESI DR2 Baryonic Acoustic Oscillations Measurements
• The DESI DR1/DR2 evidence for dynamical dark energy is biased by low-redshift supernovae
• Combining pre- and post-recombination new physics to address cosmological tensions: case study with varying electron mass and sign-switching cosmological constant
• $\Lambda$CDM Tensions: Localising Missing Physics through Consistency Checks
• Model-independent measurement of cosmic curvature with the latest $H(z)$ and SNe Ia data: A comprehensive investigation
• What it takes to solve the Hubble tension through modifications of cosmological recombination
• No-go guide for late-time solutions to the Hubble tension: Matter perturbations
• The redshift dependence of the inferred $H_0$ in a local void solution to the Hubble tension
• Cosmological measurements from void-galaxy and galaxy-galaxy clustering in the Sloan Digital Sky Survey
• Running Hubble constant: evolutionary Dark Energy
• Testing the local void hypothesis using baryon acoustic oscillation measurements over the last twenty years
• Improved null tests of $\Lambda$CDM and FLRW in light of DESI DR2
• Measuring cosmic curvature with non-CMB observations
• Probing Cosmology with 92 Localized Fast Radio Bursts and DESI BAO
• Small cosmological constant from a peculiar inflaton potential
• In search of an interaction in the dark sector through Gaussian Process and ANN approaches
• Environment Dependent Electron Mass and the H${}_0$-Tension
• Constraints on Dark Energy Models Using Late Universe Probes
• Is there a dynamical tendency in H0 with late time measurements?
• Anisotropies of cosmological gravitational wave backgrounds in non-flat spacetime
• Multiple measurements on the cosmic curvature using Gaussian process regression without calibration and a cosmological model
• Impact of Low ell's on Large Scale Structure Anomalies

Cited by in corpus (4)

• Dark Energy in the DESI Era: A Brief Review of Evidence, Beyond-$\Lambda$CDM Interpretations, and Tensions
• Evidence for the dynamical dark energy with evolving Hubble constant
• New $H(z)$ measurement at Redshift = 0.12 with DESI Data Release 1
• Joint Curvature and Growth Rate measurements with Supernova Peculiar Velocities and the CMB