Massive neutrinos and cosmology

  title={Massive neutrinos and cosmology},
  author={Julien Lesgourgues and Sergio Pastor},
  journal={Physics Reports},
Neutrino Mass from Cosmology
Neutrinos can play an important role in the evolution of the Universe, modifying some of the cosmological observables. In this contribution we summarize the main aspects of cosmological relic
Neutrino cosmology and Planck
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
Neutrino Mass Bounds
We investigate the way how the total mass sum of neutrinos can be constrained from the neutrinoless double beta decay and cosmological probes with cosmic microwave background (WMAP 3-year results),
Neutrinos and cosmology: A lifetime relationship
We consider the example of neutrino decays to illustrate the profound relation between laboratory neutrino physics and cosmology. Two case studies are presented: In the first one, we show how the
Neutrinos in Astrophysics and Cosmology: Theoretical Advanced Study Institute (TASI) 2020 Lectures
I introduce the consequences of neutrino mass and mixing in the dense environments of the early Universe and in astrophysical environments. Thermal and matter effects are reviewed in the context of a
Neutrinos and Cosmological Structures
As fairly stable and weakly interacting particles, relic neutrinos of the Big Bang must survive today and form a cosmic background similar to the cosmic microwave background (CMB) radiation. This
Cosmological Neutrino Mass Detection: The Best Probe of Neutrino Lifetime
Future cosmological data may be sensitive to the effects of a finite sum of neutrino masses even as small as {approx}0.06 eV, the lower limit guaranteed by neutrino oscillation experiments. We show
Cosmology and neutrino properties
A brief review for particle physicists on the cosmological impact of neutrinos and on restrictions on neutrino properties from cosmology is given. The paper includes a discussion of upper bounds on


Cosmological measurement of neutrino mass in the presence of leptonic asymmetry
We show that even the smallest neutrino mass consistent with the Super--Kamiokande data is relevant for cosmological models of structure formation and cosmic microwave background (CMB) anisotropies,
Can cosmology detect hierarchical neutrino masses
We have carefully analyzed the potential of future cosmic microwave background (CMB) and large scale structure (LSS) measurements to probe neutrino masses. We perform a Fisher matrix analysis on a
Cosmological signatures of interacting neutrinos
We investigate signatures of neutrino scattering in the cosmic microwave background (CMB) and matter power spectra, and the extent to which present cosmological data can distinguish between a
Do observations prove that cosmological neutrinos are thermally distributed
It is usually assumed that relic neutrinos possess a Fermi-Dirac distribution, acquired during thermal equilibrium in the Early Universe. However, various mechanisms could introduce strong
Neutrino masses and the dark energy equation of state: relaxing the cosmological neutrino mass bound.
When the dark energy equation of state parameter is taken as a free (but constant) parameter, the neutrino mass bound is sigma m(v) < or = 1.48 eV (95% C.L.) in the standard model where thedark energy is in the form of a cosmological constant.
Signatures of relativistic neutrinos in CMB anisotropy and matter clustering
We present a detailed analytical study of ultrarelativistic neutrinos in cosmological perturbation theory and of the observable signatures of inhomogeneities in the cosmic neutrino background. We
The current status of the physics of massive neutrinos is reviewed with a forward-looking emphasis. The article begins with the general phenomenology of neutrino oscillations in vacuum and matter and