Neutrino cosmology and Planck
By Julien Lesgourgues, S. Pastor. 2014
150 citations recorded by the source corpus.
Relic neutrinos play an important role in the evolution of the Universe, modifying some of the cosmological observables. We summarize the main aspects of cosmological neutrinos and describe how the precision of present cosmological data can be used to learn about neutrino properties. In particular, we discuss how cosmology provides information on the absolute scale of neutrino masses, complementary to beta decay and neutrinoless double-beta decay experiments. We explain why the combination of Planck temperature data with measurements of the baryon acoustic oscillation angular scale provides a strong bound on the sum of neutrino masses, 0.23 eV at the 95% confidence level, while the lensing potential spectrum and the cluster mass function measured by Planck are compatible with larger values. We also review the constraints from current data on other neutrino properties. Finally, we describe the very good perspectives from future cosmological measurements, which are expected to be sensitive to neutrino masses close to the minimum values guaranteed by flavour oscillations.
Subfields: Nuclear and High Energy Physics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/19f9974bfc72b007375b7cff6c07908fb6159bb4
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In Nuclear and High Energy Physics
In Statistical and Nonlinear Physics
- S. Hannestad
- R. Ruiz
- Luca Visinelli
- L. Luzio
- E. Nardi
- Shouvik Roy Choudhury
- A. Marrone
- Francesco Capozzi
Citations in the corpus
- Global constraints on absolute neutrino masses and their ordering (2017, background): “1Þ eV, by assuming the standard cosmological model [18,19].”
- Lepton Number Violation: Seesaw Models and Their Collider Tests (2017, background): “1 eV in the near future (5–7 years) [81], upcoming cosmological probes will not be able to settle the issue of the neutrino mass hierarchy.”
- The landscape of QCD axion models (2020, methodology): “So far, the current best-fit limits on Neff coming from the Planck 2018 + BAO measurements agree with the SM prediction [254, 310, 311] and”
- Updated results on neutrino mass and mass hierarchy from cosmology with Planck 2018 likelihoods (2019, methodology): “luster on small length scales, and this causes increasing suppression of small scale matter power spectrum with increasing fraction of neutrino energy density with respect to the total matter density [20]. Thus if we augment CMB anisotropy data with data coming from Baryon Acoustic Oscillations (BAO”