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We have performed a careful analysis of constraints on the neutrino mass from current cosmological data. Combining data from the cosmic microwave background and the 2dF galaxy survey yields an upper limit on the sum of the three neutrino…

Astrophysics · Physics 2009-11-07 Steen Hannestad

We investigate the constraints on the sum of neutrino masses ($\Sigma m_\nu$) using the most recent cosmological data, which combines the distance measurement from baryonic acoustic oscillation in the extended Baryon Oscillation…

Cosmology and Nongalactic Astrophysics · Physics 2018-05-01 Sai Wang , Yi-Fan Wang , Dong-Mei Xia

We present here up-to-date neutrino mass limits exploiting the most recent cosmological data sets. By making use of the Cosmic Microwave Background temperature fluctuation and polarization measurements, Supernovae Ia luminosity distances,…

Cosmology and Nongalactic Astrophysics · Physics 2021-10-06 Eleonora Di Valentino , Stefano Gariazzo , Olga Mena

Cosmology in the near future promises a measurement of the sum of neutrino masses, a fundamental Standard Model parameter, as well as substantially-improved constraints on the dark energy. We use the shape of the BOSS redshift-space galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2019-07-09 Amol Upadhye

We present a new upper limit of sum m_{\nu} eV < 0.28 (95% CL) on the sum of the neutrino masses assuming a flat LCDM cosmology. This relaxes slightly to sum m_{\nu} < 0.34 and sum m_{\nu} < 0.47 when quasi non-linear scales are removed and…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Shaun A. Thomas , Filipe B. Abdalla , Ofer Lahav

At present, the strongest upper limit on $\sum m_{\nu}$, the sum of neutrino masses, is from cosmological measurements. However, this bound assumes that the neutrinos are stable on cosmological timescales, and is not valid if the neutrino…

High Energy Physics - Phenomenology · Physics 2020-05-04 Zackaria Chacko , Abhish Dev , Peizhi Du , Vivian Poulin , Yuhsin Tsai

The sum of cosmic neutrino masses can be measured cosmologically, as the sub-eV particles behave as `hot' dark matter whose main effect is to suppress the clustering of matter compared to a universe with the same amount of purely cold dark…

Cosmology and Nongalactic Astrophysics · Physics 2024-09-05 Helen Shao , Jahmour J. Givans , Jo Dunkley , Mathew Madhavacheril , Frank Qu , Gerrit Farren , Blake Sherwin

Within the framework of the Standard Model of particle physics and standard cosmology, observations of the Cosmic Microwave Background (CMB) and Baryon Acoustic Oscillations (BAO) set stringent bounds on the sum of the masses of neutrinos.…

High Energy Physics - Phenomenology · Physics 2016-03-16 Yasaman Farzan , Steen Hannestad

We present cosmological constraints on the sum of neutrino masses as a function of the neutrino lifetime, in a framework in which neutrinos decay into dark radiation after becoming non-relativistic. We find that in this regime the cosmic…

High Energy Physics - Phenomenology · Physics 2022-08-18 Guillermo F. Abellán , Zackaria Chacko , Abhish Dev , Peizhi Du , Vivian Poulin , Yuhsin Tsai

The latest cosmological constraints on the sum of the neutrino masses depend on prior physical assumptions about the mass spectrum. To test the accordance of cosmological and laboratory constraints in the absence of such priors, we…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-14 Willem Elbers , Carlos S. Frenk , Adrian Jenkins , Baojiu Li , Silvia Pascoli

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.…

Cosmological neutrino mass and abundance measurements are reaching unprecedented precision. Testing their stability versus redshift and scale is a crucial issue, as it can serve as a guide for optimizing ongoing and future searches. Here,…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-13 Deng Wang , Olga Mena , Eleonora Di Valentino , Stefano Gariazzo

There is a renewed interest in constraining the sum of the masses of the three neutrino flavours by using cosmological measurements. Solar, atmospheric, and reactor neutrino experiments have confirmed neutrino oscillations, implying that…

High Energy Physics - Phenomenology · Physics 2008-11-26 Oystein Elgaroy , Ofer Lahav

We present cosmological upper limits on the sum of active neutrino masses using large-scale power spectrum data from the WiggleZ Dark Energy Survey and from the Sloan Digital Sky Survey - Data Release 7 (SDSS-DR7) sample of Luminous Red…

Cosmology and Nongalactic Astrophysics · Physics 2016-04-29 Antonio J. Cuesta , Viviana Niro , Licia Verde

Cosmology at present provides the nominally strongest constraint on the masses of standard model neutrinos. However, this constraint extremely dependent on the nature of the dark energy component of the Universe. When the dark energy…

Astrophysics · Physics 2008-11-26 Steen Hannestad

Considering the mass splitting between three active neutrinos, we represent the new constraints on the sum of neutrino mass $\sum m_\nu$ by updating the anisotropic analysis of Baryon Acoustic Oscillation (BAO) scale in the CMASS and LOWZ…

Cosmology and Nongalactic Astrophysics · Physics 2016-09-21 Qing-Guo Huang , Ke Wang , Sai Wang

Measurements of the evolution with redshift of the number density of massive galaxy clusters are used to constrain the energy density of massive neutrinos and so the sum of neutrino masses $\sum m_\nu$. We consider a spatially-flat…

Astrophysics · Physics 2009-11-10 Tina Kahniashvili , Eckhard von Toerne , Natalia A. Arhipova , Bharat Ratra

Combining measurements of the galaxy power spectrum and the cosmic microwave background (CMB) is a powerful means of constraining the summed mass of neutrino species sum(m_nu), but is subject to systematic uncertainties due to non-linear…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Molly E. C. Swanson , Will J. Percival , Ofer Lahav

The case for small neutrino mass differences from atmospheric and solar neutrino oscillation experiments has become compelling, but leaves the overall neutrino mass scale m_nu undetermined. The most restrictive limit of m_nu < 0.8 eV arises…

Astrophysics · Physics 2009-11-07 G. G. Raffelt
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