We investigate the impact of prior models on the upper bound of the sum of
neutrino masses, $m_\nu$. We use data from Large Scale Structure of
galaxies, Cosmic Microwave Background, Type Ia SuperNovae, and Big Bang
Nucleosynthesis. We probe physically motivated neutrino mass models (respecting
oscillation experiment constraints) and compare them to constraints using
standard cosmological approximations. The former give a consistent upper bound
of $m_\nu 0.26$ eV ($95\%$ CI) and yields a strong competitive
upper bound for the lightest neutrino mass species, $m_0^\nu < 0.086$ eV
($95\%$ CI). By contrast one of the approximations, which is somewhat
inconsistent with oscillation experiments, yields an upper bound of $\sum
m_\nu 0.15$ eV ($95\%$ CI), which differs substantially from the
former upper bound. We, therefore, argue that cosmological neutrino mass and
hierarchy determination should be pursued using physically motivated models
since approximations might lead to incorrect and nonphysical upper bounds.
Description
Upper Bound of Neutrino Masses from Combined Cosmological Observations and Particle Physics Experiments
%0 Generic
%1 loureiro2018upper
%A Loureiro, Arthur
%A Cuceu, Andrei
%A Abdalla, Filipe B.
%A Moraes, Bruno
%A Whiteway, Lorne
%A McLeod, Michael
%A Balan, Sreekumar T.
%A Lahav, Ofer
%A Benoit-Lévy, Aurélien
%A Manera, Marc
%A Rollins, Richard P.
%A Xavier, Henrique S.
%D 2018
%K library
%R 10.1103/PhysRevLett.123.081301
%T Upper Bound of Neutrino Masses from Combined Cosmological Observations
and Particle Physics Experiments
%U http://arxiv.org/abs/1811.02578
%X We investigate the impact of prior models on the upper bound of the sum of
neutrino masses, $m_\nu$. We use data from Large Scale Structure of
galaxies, Cosmic Microwave Background, Type Ia SuperNovae, and Big Bang
Nucleosynthesis. We probe physically motivated neutrino mass models (respecting
oscillation experiment constraints) and compare them to constraints using
standard cosmological approximations. The former give a consistent upper bound
of $m_\nu 0.26$ eV ($95\%$ CI) and yields a strong competitive
upper bound for the lightest neutrino mass species, $m_0^\nu < 0.086$ eV
($95\%$ CI). By contrast one of the approximations, which is somewhat
inconsistent with oscillation experiments, yields an upper bound of $\sum
m_\nu 0.15$ eV ($95\%$ CI), which differs substantially from the
former upper bound. We, therefore, argue that cosmological neutrino mass and
hierarchy determination should be pursued using physically motivated models
since approximations might lead to incorrect and nonphysical upper bounds.
@misc{loureiro2018upper,
abstract = {We investigate the impact of prior models on the upper bound of the sum of
neutrino masses, $\sum m_{\nu}$. We use data from Large Scale Structure of
galaxies, Cosmic Microwave Background, Type Ia SuperNovae, and Big Bang
Nucleosynthesis. We probe physically motivated neutrino mass models (respecting
oscillation experiment constraints) and compare them to constraints using
standard cosmological approximations. The former give a consistent upper bound
of $\sum m_{\nu} \lesssim 0.26$ eV ($95\%$ CI) and yields a strong competitive
upper bound for the lightest neutrino mass species, $m_0^{\nu} < 0.086$ eV
($95\%$ CI). By contrast one of the approximations, which is somewhat
inconsistent with oscillation experiments, yields an upper bound of $\sum
m_{\nu} \lesssim 0.15$ eV ($95\%$ CI), which differs substantially from the
former upper bound. We, therefore, argue that cosmological neutrino mass and
hierarchy determination should be pursued using physically motivated models
since approximations might lead to incorrect and nonphysical upper bounds.},
added-at = {2019-09-06T06:01:41.000+0200},
author = {Loureiro, Arthur and Cuceu, Andrei and Abdalla, Filipe B. and Moraes, Bruno and Whiteway, Lorne and McLeod, Michael and Balan, Sreekumar T. and Lahav, Ofer and Benoit-Lévy, Aurélien and Manera, Marc and Rollins, Richard P. and Xavier, Henrique S.},
biburl = {https://www.bibsonomy.org/bibtex/29756df2b64fc7a1732b99c2da0fbf8d8/gpkulkarni},
description = {Upper Bound of Neutrino Masses from Combined Cosmological Observations and Particle Physics Experiments},
doi = {10.1103/PhysRevLett.123.081301},
interhash = {02a5257e3a28c60227b6fac0465ca6c2},
intrahash = {9756df2b64fc7a1732b99c2da0fbf8d8},
keywords = {library},
note = {cite arxiv:1811.02578Comment: 5 pages, 2 figures},
timestamp = {2019-09-06T06:01:41.000+0200},
title = {Upper Bound of Neutrino Masses from Combined Cosmological Observations
and Particle Physics Experiments},
url = {http://arxiv.org/abs/1811.02578},
year = 2018
}