First constraint on the neutrino-induced phase shift in the spectrum of baryon acoustic oscillations

Baumann, Daniel; Beutler, Florian; Flauger, Raphael; Green, Daniel; Slosar, Anže; Vargas-Magaña, Mariana; Wallisch, Benjamin; Yèche, Christophe

doi:10.1038/s41567-019-0435-6

Title: First constraint on the neutrino-induced phase shift in the spectrum of baryon acoustic oscillations

Abstract

The existence of the cosmic neutrino background is a fascinating prediction of the hot big bang model. These neutrinos were a dominant component of the energy density in the early universe and, therefore, played an important role in the evolution of cosmological perturbations. In particular, fluctuations in the neutrino density produced a distinct shift in the temporal phase of sound waves in the primordial plasma, which has recently been detected in the cosmic microwave background (CMB). In this paper, we report on the first measurement of this neutrino-induced phase shift in the spectrum of baryon acoustic oscillations (BAO) of the BOSS DR12 data. Constraining the acoustic scale using Planck data, and marginalizing over the effects of neutrinos in the CMB, we find evidence for a non-zero phase shift at greater than 95% confidence. We also demonstrate the robustness of this result in simulations and forecasts. Besides being a new measurement of the cosmic neutrino background, our work is the first application of the BAO signal to early universe physics and a non-trivial confirmation of the standard cosmological history.

Authors:

Baumann, Daniel ^[1];

^[2];

^[3];

^[3]; Slosar, Anže ^[4]; Vargas-Magaña, Mariana ^[5];

^[6]; Yèche, Christophe ^[7]

Univ. of Amsterdam (Netherlands)
Univ. of Portsmouth (United Kingdom); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Univ. of California, San Diego, CA (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States)
Univ. Nacional Autonoma de Mexico (UNAM), Mexico City (Mexico)
Univ. of Amsterdam (Netherlands); Univ. of Cambridge (United Kingdom)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. Paris-Saclay, Gif-sur-Yvette (France)

Publication Date:: Mon Feb 25 00:00:00 EST 2019

Research Org.:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

OSTI Identifier:: 1524542

Report Number(s):: BNL-211734-2019-JAAM
Journal ID: ISSN 1745-2473

Grant/Contract Number:: SC0012704

Resource Type:: Accepted Manuscript

Journal Name:: Nature Physics

Additional Journal Information:: Journal Volume: 15; Journal Issue: 5; Journal ID: ISSN 1745-2473

Publisher:: Nature Publishing Group (NPG)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; baryons; neutrino; oscillations; constraint; BAO; CMB

Citation Formats


                    Baumann, Daniel, Beutler, Florian, Flauger, Raphael, Green, Daniel, Slosar, Anže, Vargas-Magaña, Mariana, Wallisch, Benjamin, and Yèche, Christophe. First constraint on the neutrino-induced phase shift in the spectrum of baryon acoustic oscillations.  United States: N. p., 2019. 
Web.  doi:10.1038/s41567-019-0435-6.

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                    Baumann, Daniel, Beutler, Florian, Flauger, Raphael, Green, Daniel, Slosar, Anže, Vargas-Magaña, Mariana, Wallisch, Benjamin, & Yèche, Christophe. First constraint on the neutrino-induced phase shift in the spectrum of baryon acoustic oscillations.  United States.  https://doi.org/10.1038/s41567-019-0435-6

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                    Baumann, Daniel, Beutler, Florian, Flauger, Raphael, Green, Daniel, Slosar, Anže, Vargas-Magaña, Mariana, Wallisch, Benjamin, and Yèche, Christophe. Mon .  
"First constraint on the neutrino-induced phase shift in the spectrum of baryon acoustic oscillations".  United States.  https://doi.org/10.1038/s41567-019-0435-6.  https://www.osti.gov/servlets/purl/1524542.

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@article{osti_1524542,

  title        = {First constraint on the neutrino-induced phase shift in the spectrum of baryon acoustic oscillations},

  author       = {Baumann, Daniel and Beutler, Florian and Flauger, Raphael and Green, Daniel and Slosar, Anže and Vargas-Magaña, Mariana and Wallisch, Benjamin and Yèche, Christophe},

  abstractNote = {The existence of the cosmic neutrino background is a fascinating prediction of the hot big bang model. These neutrinos were a dominant component of the energy density in the early universe and, therefore, played an important role in the evolution of cosmological perturbations. In particular, fluctuations in the neutrino density produced a distinct shift in the temporal phase of sound waves in the primordial plasma, which has recently been detected in the cosmic microwave background (CMB). In this paper, we report on the first measurement of this neutrino-induced phase shift in the spectrum of baryon acoustic oscillations (BAO) of the BOSS DR12 data. Constraining the acoustic scale using Planck data, and marginalizing over the effects of neutrinos in the CMB, we find evidence for a non-zero phase shift at greater than 95% confidence. We also demonstrate the robustness of this result in simulations and forecasts. Besides being a new measurement of the cosmic neutrino background, our work is the first application of the BAO signal to early universe physics and a non-trivial confirmation of the standard cosmological history.},

  doi          = {10.1038/s41567-019-0435-6},

  journal      = {Nature Physics},

  number       = 5,

  volume       = 15,

  place        = {United States},

  year         = {Mon Feb 25 00:00:00 EST 2019},

  month        = {Mon Feb 25 00:00:00 EST 2019}

}

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Title: First constraint on the neutrino-induced phase shift in the spectrum of baryon acoustic oscillations

Abstract

Citation Formats

A Hidden Dark Matter Sector, Dark Radiation, and the CMB text, January 2015

MultiDark simulations: the story of dark matter halo concentrations and density profiles journal, February 2016

Conservative constraints on early cosmology with M ONTE P YTHON journal, February 2013

First Detection of the Acoustic Oscillation Phase Shift Expected from the Cosmic Neutrino Background journal, August 2015

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Cosmological parameters from CMB and other data: A Monte Carlo approach journal, November 2002

Dynamics of cosmological perturbations in position space journal, June 2002

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Efficient Computation of Cosmic Microwave Background Anisotropies in Closed Friedmann‐Robertson‐Walker Models journal, August 2000

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Improving Cosmological Distance Measurements by Reconstruction of the Baryon Acoustic Peak text, January 2006

On the Robustness of the Acoustic Scale in the Low-Redshift Clustering of Matter text, January 2006

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Improving Cosmological Distance Measurements by Reconstruction of the Baryon Acoustic Peak journal, August 2007

emcee : The MCMC Hammer journal, March 2013

On the Robustness of the Acoustic Scale in the Low‐Redshift Clustering of Matter journal, August 2007

Universal Neutrino Degeneracy journal, November 1962

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The Cosmic Linear Anisotropy Solving System (CLASS). Part II: Approximation schemes journal, July 2011

New light species and the CMB journal, December 2013

Matplotlib: A 2D Graphics Environment journal, January 2007

Searching for light relics with large-scale structure text, January 2018

Galaxy bias and its Effects on the Baryon Acoustic Oscillation Measurements journal, May 2011

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Measuring the impact of COVID-19 vaccine misinformation on vaccination intent in the UK and USA journal, February 2021

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Relic neutrino decoupling including flavour oscillations journal, November 2005

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Noncanonical Approaches To Inflation preprint, January 2019

Primordial Features from Linear to Nonlinear Scales text, January 2019

Cosmological constraints on invisible neutrino decays revisited journal, November 2019

Primordial features from linear to nonlinear scales journal, December 2019

Primordial features from linear to nonlinear scales text, January 2020

A Hidden Dark Matter Sector, Dark Radiation, and the CMB
text, January 2015

MultiDark simulations: the story of dark matter halo concentrations and density profiles
journal, February 2016

Conservative constraints on early cosmology with M ONTE P YTHON
journal, February 2013

First Detection of the Acoustic Oscillation Phase Shift Expected from the Cosmic Neutrino Background
journal, August 2015

DESI and other dark energy experiments in the era of neutrino mass measurements
text, January 2013

Inference from Iterative Simulation Using Multiple Sequences
journal, November 1992

Phases of New Physics in the BAO Spectrum
journal, November 2017

Prospects for the direct detection of the cosmic neutrino background
text, January 2009

New Target for Cosmic Axion Searches
journal, October 2016

Signatures of relativistic neutrinos in CMB anisotropy and matter clustering
journal, April 2004

Cosmological parameters from CMB and other data: A Monte Carlo approach
journal, November 2002

Dynamics of cosmological perturbations in position space
journal, June 2002

Hidden dark matter sector, dark radiation, and the CMB
journal, September 2015

nbodykit: An Open-source, Massively Parallel Toolkit for Large-scale Structure
journal, September 2018

The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
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Searching for light relics with large-scale structure
journal, August 2018

Efficient Computation of Cosmic Microwave Background Anisotropies in Closed Friedmann‐Robertson‐Walker Models
journal, August 2000

Cosmological parameters from CMB and other data: a Monte-Carlo approach
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Improving Cosmological Distance Measurements by Reconstruction of the Baryon Acoustic Peak
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On the Robustness of the Acoustic Scale in the Low-Redshift Clustering of Matter
text, January 2006

The Eleventh and Twelfth data Releases of the Sloan Digital sky Survey: Final data from Sdss-Iii
journal, July 2015

Improving Cosmological Distance Measurements by Reconstruction of the Baryon Acoustic Peak
journal, August 2007

`emcee` : The MCMC Hammer
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On the Robustness of the Acoustic Scale in the Low‐Redshift Clustering of Matter
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Universal Neutrino Degeneracy
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DESI and other Dark Energy experiments in the era of neutrino mass measurements
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The Cosmic Linear Anisotropy Solving System (CLASS). Part II: Approximation schemes
journal, July 2011

New light species and the CMB
journal, December 2013

Matplotlib: A 2D Graphics Environment
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Searching for light relics with large-scale structure
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journal, August 2009

The NumPy Array: A Structure for Efficient Numerical Computation
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Measuring the impact of COVID-19 vaccine misinformation on vaccination intent in the UK and USA
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CASSPER is a semantic segmentation-based particle picking algorithm for single-particle cryo-electron microscopy
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Relic neutrino decoupling including flavour oscillations
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preprint, January 2019

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journal, November 2019

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