# Cosmological evidence for leptonic asymmetry after Planck

@article{Caramete2013CosmologicalEF,
title={Cosmological evidence for leptonic asymmetry after Planck},
author={Ana Caramete and Lucia Aurelia Popa},
journal={Journal of Cosmology and Astroparticle Physics},
year={2013},
volume={2014},
pages={012 - 012}
}
• Published 15 November 2013
• Physics
• Journal of Cosmology and Astroparticle Physics
Recently, the PLANCK satellite found a larger and most precise value of the matter energy density, that impacts on the present values of other cosmological parameters such as the Hubble constant H0, the present cluster abundances S8, and the age of the Universe tU. The existing tension between PLANCK determination of these parameters in the frame of the base ΛCDM model and their determination from other measurements generated lively discussions, one possible interpretation being that some…
21 Citations
Observations of the 21 cm line radiation coming from the epoch of reionization have a great capacity to study the cosmological growth of the Universe. Also, CMB polarization produced by gravitational
• Physics
• 2015
Few independent detections of a weak X-ray line at an energy of ∼ 3.5 keV seen toward a number of astrophysical sites have been reported. If this signal will be confirmed to be the signature of
• Physics
Journal of Cosmology and Astroparticle Physics
• 2022
Using the latest observational data from Planck-CMB and its combination with the pre-reconstructed full-shape (FS) galaxy power spectrum measurements from the BOSS DR12 sample and eBOSS LRG DR16
• Physics
Universe
• 2022
Through the relationship between dispersion measures (DM) and redshifts, fast radio bursts (FRBs) are considered to be very promising cosmological probes. In this paper, we attempted to use the DM-z
• Physics
Journal of Cosmology and Astroparticle Physics
• 2020
We consider the cosmological effects of sterile neutrinos with the masses of 150–450 MeV . The decay of sterile neutrinos changes the thermal history of the Universe and affects the energy density of
In our first project, we considered a decaying dark matter component as a source of reionization in addition to the reionization process caused by astrophysical objects. Both of these reionization
• Physics
• 2020
We examine the extent to which primordial black holes (PBHs) can constitute the observed dark matter while also giving rise to the measured matter-antimatter asymmetry and account for the observed
• Physics
• 2014
We investigate the issue of how accurately we can constrain the lepton number asymmetry ξν=μν/Tν in the Universe by using future observations of 21 cm line fluctuations and cosmic microwave
• Mathematics
Astronomy & Astrophysics
• 2019
In this paper, we study the estimation of the effective number of relativistic species from a combination of cosmic microwave background (CMB) and baryon acoustic oscillations (BAO) data. We vary
• Physics
Monthly Notices of the Royal Astronomical Society
• 2019
We consider a cosmological lepton asymmetry in the form of neutrinos and impose new expected sensitivities on such asymmetry through the degeneracy parameter ($\xi_{\nu}$) by using some future CMB

## References

SHOWING 1-10 OF 98 REFERENCES

• Physics
• 2013
We use Bayesian model comparison to determine whether extensions to Standard-Model neutrino physics — primarily additional effective numbers of neutrinos and/or massive neutrinos — are merited by the
The relic neutrinos from the Big Bang or the Cosmic Neutrino Background (CNB) neutrinos are expected to be the most abundant particles in our universe after the relic photons of the Cosmic Microwave
• Physics
• 2013
A bstractWe analyze the most recent cosmological data, including Planck, taking into account the possible existence of a sterile neutrino with a mass at the eV scale indicated by short-baseline
• Physics
• 2008
In this paper we set bounds on the radiation content of the Universe and neutrino properties by using the WMAP (Wilkinson microwave anisotropy probe) five-year CMB (cosmic microwave background)
• Physics
• 2008
The relic cosmic background neutrinos accompanying the cosmic microwave background (CMB) photons may hide a universal lepton asymmetry orders of magnitude larger than the universal baryon asymmetry.
• Physics
• 2013
We present new constraints on the relativistic neutrino effective number Neff and on the Cosmic Microwave Background power spectrum lensing amplitude AL from the recent Planck 2013 data release.
• Physics
• 2013
Within the standard ΛCDM model of cosmology, the recent Planck measurements have shown discrepancies with other observations, e.g., measurements of the current expansion rate H0, the galaxy shear
• Physics
• 2013
There are hints, both from cosmology and from neutrino oscillation experiments, that one or two sterile neutrinos with eV masses are favored. We consider the implications of combining data from short