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The full Boltzmann hierarchy for dark matter-massive neutrino interactions

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The full Boltzmann hierarchy for dark matter-massive neutrino interactions. / Mosbech, Markus R.; Boehm, Celine; Hannestad, Steen et al.

In: Journal of Cosmology and Astroparticle Physics, Vol. 2021, No. 3, 066, 03.2021.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Mosbech, MR, Boehm, C, Hannestad, S, Mena, O, Stadler, J & Wong, YYY 2021, 'The full Boltzmann hierarchy for dark matter-massive neutrino interactions', Journal of Cosmology and Astroparticle Physics, vol. 2021, no. 3, 066. https://doi.org/10.1088/1475-7516/2021/03/066

APA

Mosbech, M. R., Boehm, C., Hannestad, S., Mena, O., Stadler, J., & Wong, Y. Y. Y. (2021). The full Boltzmann hierarchy for dark matter-massive neutrino interactions. Journal of Cosmology and Astroparticle Physics, 2021(3), [066]. https://doi.org/10.1088/1475-7516/2021/03/066

CBE

Mosbech MR, Boehm C, Hannestad S, Mena O, Stadler J, Wong YYY. 2021. The full Boltzmann hierarchy for dark matter-massive neutrino interactions. Journal of Cosmology and Astroparticle Physics. 2021(3):Article 066. https://doi.org/10.1088/1475-7516/2021/03/066

MLA

Mosbech, Markus R. et al. "The full Boltzmann hierarchy for dark matter-massive neutrino interactions". Journal of Cosmology and Astroparticle Physics. 2021. 2021(3). https://doi.org/10.1088/1475-7516/2021/03/066

Vancouver

Mosbech MR, Boehm C, Hannestad S, Mena O, Stadler J, Wong YYY. The full Boltzmann hierarchy for dark matter-massive neutrino interactions. Journal of Cosmology and Astroparticle Physics. 2021 Mar;2021(3):066. doi: 10.1088/1475-7516/2021/03/066

Author

Mosbech, Markus R. ; Boehm, Celine ; Hannestad, Steen et al. / The full Boltzmann hierarchy for dark matter-massive neutrino interactions. In: Journal of Cosmology and Astroparticle Physics. 2021 ; Vol. 2021, No. 3.

Bibtex

@article{52836f8f11354166995f53fc27ac770d,
title = "The full Boltzmann hierarchy for dark matter-massive neutrino interactions",
abstract = "The impact of dark matter-neutrino interactions on the measurement of the cosmological parameters has been investigated in the past in the context of massless neutrinos exclusively. Here we revisit the role of a neutrino-dark matter coupling in light of ongoing cosmological tensions by implementing the full Boltzmann hierarchy for three massive neutrinos. Our tightest 95% CL upper limit on the strength of the interactions, parameterized via uχ =σ0/σTh(mχ/100 GeV)-1, is uχ≤3.34 • 10-4, arising from a combination of Planck TTTEEE data, Planck lensing data and SDSS BAO data. This upper bound is, as expected, slightly higher than previous results for interacting massless neutrinos, due to the correction factor associated with neutrino masses. We find that these interactions significantly relax the lower bounds on the value of σ_8 that is inferred in the context of ΛCDM from the Planck data, leading to agreement within 1-2σ with weak lensing estimates of σ8, as those from KiDS-1000. However, the presence of these interactions barely affects the value of the Hubble constant H0. ",
keywords = "cosmological perturbation theory, dark matter theory, neutrino properties, particle physics-cosmology connection",
author = "Mosbech, {Markus R.} and Celine Boehm and Steen Hannestad and Olga Mena and Julia Stadler and Wong, {Yvonne Y.Y.}",
note = "Publisher Copyright: {\textcopyright} 2021 IOP Publishing Ltd and Sissa Medialab.",
year = "2021",
month = mar,
doi = "10.1088/1475-7516/2021/03/066",
language = "English",
volume = "2021",
journal = "Journal of Cosmology and Astroparticle Physics",
issn = "1475-7516",
publisher = "IOP Publishing",
number = "3",

}

RIS

TY - JOUR

T1 - The full Boltzmann hierarchy for dark matter-massive neutrino interactions

AU - Mosbech, Markus R.

AU - Boehm, Celine

AU - Hannestad, Steen

AU - Mena, Olga

AU - Stadler, Julia

AU - Wong, Yvonne Y.Y.

N1 - Publisher Copyright: © 2021 IOP Publishing Ltd and Sissa Medialab.

PY - 2021/3

Y1 - 2021/3

N2 - The impact of dark matter-neutrino interactions on the measurement of the cosmological parameters has been investigated in the past in the context of massless neutrinos exclusively. Here we revisit the role of a neutrino-dark matter coupling in light of ongoing cosmological tensions by implementing the full Boltzmann hierarchy for three massive neutrinos. Our tightest 95% CL upper limit on the strength of the interactions, parameterized via uχ =σ0/σTh(mχ/100 GeV)-1, is uχ≤3.34 • 10-4, arising from a combination of Planck TTTEEE data, Planck lensing data and SDSS BAO data. This upper bound is, as expected, slightly higher than previous results for interacting massless neutrinos, due to the correction factor associated with neutrino masses. We find that these interactions significantly relax the lower bounds on the value of σ_8 that is inferred in the context of ΛCDM from the Planck data, leading to agreement within 1-2σ with weak lensing estimates of σ8, as those from KiDS-1000. However, the presence of these interactions barely affects the value of the Hubble constant H0.

AB - The impact of dark matter-neutrino interactions on the measurement of the cosmological parameters has been investigated in the past in the context of massless neutrinos exclusively. Here we revisit the role of a neutrino-dark matter coupling in light of ongoing cosmological tensions by implementing the full Boltzmann hierarchy for three massive neutrinos. Our tightest 95% CL upper limit on the strength of the interactions, parameterized via uχ =σ0/σTh(mχ/100 GeV)-1, is uχ≤3.34 • 10-4, arising from a combination of Planck TTTEEE data, Planck lensing data and SDSS BAO data. This upper bound is, as expected, slightly higher than previous results for interacting massless neutrinos, due to the correction factor associated with neutrino masses. We find that these interactions significantly relax the lower bounds on the value of σ_8 that is inferred in the context of ΛCDM from the Planck data, leading to agreement within 1-2σ with weak lensing estimates of σ8, as those from KiDS-1000. However, the presence of these interactions barely affects the value of the Hubble constant H0.

KW - cosmological perturbation theory

KW - dark matter theory

KW - neutrino properties

KW - particle physics-cosmology connection

UR - http://www.scopus.com/inward/record.url?scp=85103649979&partnerID=8YFLogxK

U2 - 10.1088/1475-7516/2021/03/066

DO - 10.1088/1475-7516/2021/03/066

M3 - Journal article

AN - SCOPUS:85103649979

VL - 2021

JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

SN - 1475-7516

IS - 3

M1 - 066

ER -