Accurately Weighing Neutrinos with Cosmological Surveys

Abstract

A promising avenue to measure the total, and potentially individual, mass of neutrinos consists of leveraging cosmological datasets, such as the cosmic microwave background and surveys of the large-scale structure of the universe. In order to obtain unbiased estimates of the neutrino mass, however, many effects ought to be included. Here we forecast, via a Markov Chain Monte Carlo likelihood analysis, whether measurements by two galaxy surveys: DESI and {\it Euclid}, when added to the CMB-S4 experiment, are sensitive to two effects that can alter neutrino-mass measurements. The first is the slight difference in the suppression of matter fluctuations that each neutrino-mass hierarchy generates, at fixed total mass. The second is the growth-induced scale-dependent bias (GISDB) of haloes produced by massive neutrinos. We find that near-future surveys can distinguish hierarchies with the same total mass only at the $1\sigma$ level; thus, while these are poised to deliver a measurement of the sum of neutrino masses, they cannot significantly discern the mass of each individual neutrino in the foreseeable future. We further find that neglecting the GISDB induces up to a $1\sigma$ overestimation of the total neutrino mass, and we show how to absorb this effect via a redshift-dependent parametrization of the scale-independent bias.

arXiv comment12 pages, 5 figures. Matches PRD version

References in corpus (56)

• The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
• Observation of Reactor Electron Antineutrino Disappearance in the RENO Experiment
• Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
• The DESI Experiment Part I: Science,Targeting, and Survey Design
• Dark Energy Survey Year 1 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
• Indication for the disappearance of reactor electron antineutrinos in the Double Chooz experiment
• Neutrino Physics with JUNO
• Massive neutrinos and cosmology
• Cosmology and Fundamental Physics with the Euclid Satellite
• Status of global fits to neutrino oscillations
• ANTARES: the first undersea neutrino telescope
• Global analysis of neutrino masses, mixings and phases: entering the era of leptonic CP violation searches
• Global fit to three neutrino mixing: critical look at present precision
• An improved upper limit on the neutrino mass from a direct kinematic method by KATRIN
• CMB Lensing Reconstruction on the Full Sky
• Unveiling $\nu$ secrets with cosmological data: neutrino masses and mass hierarchy
• Constraints on neutrino oscillation parameters from the measurement of day-night solar neutrino fluxes at Super-Kamiokande
• Reconstruction of lensing from the cosmic microwave background polarization
• Late-time cosmology with 21cm intensity mapping experiments
• CP Violation and Neutrino Oscillations
• Determining Neutrino Mass from the CMB Alone
• Towards a cosmological neutrino mass detection
• Bias in the Effective Field Theory of Large Scale Structures
• Cosmology with massive neutrinos II: on the universality of the halo mass function and bias
• DEMNUni: The clustering of large-scale structures in the presence of massive neutrinos
• Cosmology with massive neutrinos I: towards a realistic modeling of the relation between matter, haloes and galaxies
• An efficient implementation of massive neutrinos in non-linear structure formation simulations
• Cosmology with massive neutrinos III: the halo mass function and an application to galaxy clusters
• Probing neutrino masses with future galaxy redshift surveys
• The promising future of a robust cosmological neutrino mass measurement
• Halo bias in mixed dark matter cosmologies
• Can we measure the neutrino mass hierarchy in the sky?
• Cosmology in the era of Euclid and the Square Kilometre Array
• Combining first KamLAND results with solar neutrino data
• Bias due to neutrinos must not uncorrect'd go
• The effect of Limber and flat-sky approximations on galaxy weak lensing
• An Updated Tomographic Analysis of the Integrated Sachs-Wolfe Effect and implications for Dark Energy
• Deconstructing the neutrino mass constraint from galaxy redshift surveys
• An Efficient and Accurate Hybrid Method for Simulating Non-Linear Neutrino Structure
• Cosmology and the neutrino mass ordering
• Halo bias in Lagrangian Space: Estimators and theoretical predictions
• Spherical collapse in $\nu \Lambda CDM$
• Constraining massive neutrinos using cosmological 21 cm observations
• Determining the Neutrino Mass Hierarchy with Cosmology
• Constraints on neutrino masses from Planck and Galaxy Clustering data
• Biases from neutrino bias: to worry or not to worry?
• Probing the neutrino mass hierarchy with CMB weak lensing
• The Effective Field Theory of Large-Scale Structure in the presence of Massive Neutrinos
• First detection of scale-dependent linear halo bias in $N$-body simulations with massive neutrinos
• Efficient Computation of Galaxy Bias with Neutrinos and Other Relics
• Non-local halo bias with and without massive neutrinos
• Neutrino mass without cosmic variance
• Neutrino Mass from Cosmology: Probing Physics Beyond the Standard Model
• Flat-Sky Pseudo-Cls Analysis for Weak Gravitational Lensing
• Finding eV-scale Light Relics with Cosmological Observables
• What will it take to measure individual neutrino mass states using cosmology?

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• What can CMB observations tell us about the neutrino distribution function?
• Updating non-standard neutrinos properties with Planck-CMB data and full-shape analysis of BOSS and eBOSS galaxies
• Transition dynamics in the ${\Lambda }_{\mathrm{s}}$CDM model: Implications for bound cosmic structures
• Precise and Accurate Cosmology with CMBxLSS Power Spectra and Bispectra
• Finding eV-scale Light Relics with Cosmological Observables
• Cosmological forecasts on thermal axions, relic neutrinos and light elements
• Two-loop power spectrum with full time- and scale-dependence and EFT corrections: impact of massive neutrinos and going beyond EdS
• Constraining the neutrino mass using a multi-tracer combination of two galaxy surveys and CMB lensing
• Using peculiar velocity surveys to constrain neutrino masses
• Improving initialization and evolution accuracy of cosmological neutrino simulations
• Constraining neutrino mass in dynamical dark energy cosmologies with the logarithm parametrization and the oscillating parametrization
• Updated neutrino mass constraints from galaxy clustering and CMB lensing-galaxy cross-correlation measurements
• Cosmological Constraints on Neutrino Masses in a Second-Order CPL Dark Energy Model