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相关论文: On the most constraining cosmological neutrino mas…

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The most recent measurements of the temperature and low-multipole polarization anisotropies of the Cosmic Microwave Background (CMB) from the Planck satellite, when combined with galaxy clustering data from the Baryon Oscillation…

宇宙学与河外天体物理 · 物理学 2018-12-13 Elena Giusarma , Martina Gerbino , Olga Mena , Sunny Vagnozzi , Shirley Ho , Katherine Freese

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…

宇宙学与河外天体物理 · 物理学 2018-05-01 Sai Wang , Yi-Fan Wang , Dong-Mei Xia

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…

天体物理学 · 物理学 2009-11-07 Steen Hannestad

Our tightest upper limit on the sum of neutrino mass eigenvalues $M_\nu$ comes from cosmological observations that will improve substantially in the near future, enabling a detection. The combination of the Baryon Acoustic Oscillation…

宇宙学与河外天体物理 · 物理学 2015-10-28 Zhen Pan , Lloyd Knox

Using some of the latest cosmological datasets publicly available, we derive the strongest bounds in the literature on the sum of the three active neutrino masses, $M_\nu$, within the assumption of a background flat $\Lambda$CDM cosmology.…

宇宙学与河外天体物理 · 物理学 2018-12-13 Sunny Vagnozzi , Elena Giusarma , Olga Mena , Katherine Freese , Martina Gerbino , Shirley Ho , Massimiliano Lattanzi

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…

宇宙学与河外天体物理 · 物理学 2024-09-05 Helen Shao , Jahmour J. Givans , Jo Dunkley , Mathew Madhavacheril , Frank Qu , Gerrit Farren , Blake Sherwin

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.…

Low-redshift probes, such as Baryon Acoustic Oscillations (BAO) and Supernovae Ia luminosity distances, have been shown to be crucial for improving the bounds on the total neutrino mass from cosmological observations, due to their ability…

宇宙学与河外天体物理 · 物理学 2024-12-16 Deng Wang , Olga Mena , Eleonora Di Valentino , Stefano Gariazzo

Using several cosmological observations, i.e. the cosmic microwave background anisotropies (WMAP), the weak gravitational lensing (CFHTLS), the measurements of baryon acoustic oscillations (SDSS+WiggleZ), the most recent observational…

宇宙学与河外天体物理 · 物理学 2012-12-07 Xin Wang , Xiao-Lei Meng , Tong-Jie Zhang , HuanYuan Shan , Yan Gong , Charling Tao , Xuelei Chen , Y. F. Huang

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…

宇宙学与河外天体物理 · 物理学 2016-09-21 Qing-Guo Huang , Ke Wang , Sai Wang

The recent DESI Baryon Acoustic Oscillation measurements have led to tight upper limits on the neutrino mass sum, potentially in tension with oscillation constraints requiring $\sum m_{\nu} \gtrsim 0.06\,{\text{eV}}$. Under the physically…

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…

高能物理 - 唯象学 · 物理学 2020-05-04 Zackaria Chacko , Abhish Dev , Peizhi Du , Vivian Poulin , Yuhsin Tsai

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…

高能物理 - 唯象学 · 物理学 2008-11-26 Oystein Elgaroy , Ofer Lahav

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…

天体物理学 · 物理学 2008-11-26 Steen Hannestad

I briefly review cosmological bounds on neutrino masses and the underlying gravitational physics at a level appropriate for readers outside the field of cosmology. For the case of three massive neutrinos with standard model freezeout, the…

高能物理 - 唯象学 · 物理学 2009-10-07 Max Tegmark

Cosmological constraints on the sum of neutrino masses and on the effective number of neutrino species in standard and non-standard scenarios are computed using the most recent available cosmological data. Our cosmological data sets include…

宇宙学与河外天体物理 · 物理学 2013-05-30 Elena Giusarma , Roland de Putter , Olga Mena

With the advent of precision data, cosmology has become an extremely powerful tool for probing particle physics. The prime example of this is the cosmological bound on light neutrino masses. Here I review the current status of cosmological…

高能物理 - 唯象学 · 物理学 2017-08-23 Steen Hannestad

The light neutrino masses are at present most stringently constraint via cosmological probes. In particular the Planck collaboration reports $ \sum m_\nu \leq 0.12\,\mathrm{eV}$ at $95\%$ CL within the standard cosmological model. This is…

高能物理 - 唯象学 · 物理学 2022-05-17 Stefan Sandner

Model-independent mass limits assess the robustness of current cosmological measurements of the neutrino mass scale. Consistency between high-multipole and low-multiple Cosmic Microwave Background observations measuring such scale further…

宇宙学与河外天体物理 · 物理学 2023-10-12 Eleonora Di Valentino , Stefano Gariazzo , William Giarè , Olga Mena

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…

宇宙学与河外天体物理 · 物理学 2016-04-29 Antonio J. Cuesta , Viviana Niro , Licia Verde
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