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相关论文: Massive neutrinos and dark energy

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Recently, the Heidelberg-Moscow double beta decay experiment has claimed a detection for a neutrino mass with high significance. Here we consider the impact of this measurement on the determination of the dark energy equation of state. By…

天体物理学 · 物理学 2008-11-26 Axel De La Macorra , Alessandro Melchiorri , Paolo Serra , Rachel Bean

We use the current weak lensing data to constrain the equation of state of dark energy $w$ and the total mass of massive neutrinos $\sum m_{\nu}$. The constraint on $w$ would be weak if only the current weak lensing data are used. With the…

天体物理学 · 物理学 2008-10-21 Yan Gong , Tong-Jie Zhang , Tian Lan , Xue-Lei Chen

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

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…

宇宙学与河外天体物理 · 物理学 2025-02-14 Willem Elbers , Carlos S. Frenk , Adrian Jenkins , Baojiu Li , Silvia Pascoli

We have performed a thorough analysis of the constraints which can be put on neutrino parameters from cosmological observations, most notably those from the WMAP satellite and the 2dF galaxy survey. For this data we find an upper limit on…

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

We investigate the correlation between the neutrino mass limit and dark energy with time evolving equation of state. Parameterizing dark energy as w=w_0+w_1*z/(1+z), we make a global fit using Markov Chain Monte Carlo technique to determine…

天体物理学 · 物理学 2008-11-26 Jun-Qing Xia , Gong-Bo Zhao , Xinmin Zhang

Taking into account the mass splittings between three active neutrinos, we investigate impacts of dark energy on constraining the total neutrino mass $\sum m_{\nu}$ by using recent cosmological observations. We consider two typical dark…

宇宙学与河外天体物理 · 物理学 2016-10-25 Sai Wang , Yi-Fan Wang , Dong-Mei Xia , Xin Zhang

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

We consider cosmological models with dynamical dark energy (dDE) coupled to cold dark matter (CDM), while simultaneously allowing neutrinos to be massive. Using a MCMC approach, we compare these models with a wide range of cosmological data…

宇宙学与河外天体物理 · 物理学 2010-11-26 J. R. Kristiansen , G. La Vacca , L. P. L. Colombo , R. Mainini , S. A. Bonometto

Considering the mass splittings of three active neutrinos, we investigate how the nature of dark energy affects the cosmological constraints on the total neutrino mass $\sum m_\nu$ using the latest cosmological observations. In this paper,…

宇宙学与河外天体物理 · 物理学 2020-12-02 Ming Zhang , Jing-Fei Zhang , Xin Zhang

With the latest astronomical data including Cosmic Microwave Background (WMAP three year, CBI, ACBAR, VSA), Type Ia Supernova ("gold sample"), Galaxy Clustering (SDSS 3-D matter power, Lyman-$\alpha$ forest and Baryon Acoustic Oscillating…

天体物理学 · 物理学 2010-10-27 Gong-Bo Zhao , Jun-Qing Xia , Xinmin Zhang

We investigate how dark energy properties impact the cosmological limits on the total mass of active neutrinos. We consider two typical, simple dark energy models (that have only one more additional parameter than $\Lambda$CDM), i.e., the…

宇宙学与河外天体物理 · 物理学 2016-05-04 Xin Zhang

By combining data from seven cosmic microwave background experiments (including the latest WMAP results) with large scale structure data, the Hubble parameter measurement from the Hubble Space Telescope and luminosity measurements of Type…

天体物理学 · 物理学 2008-11-26 Alessandro Melchiorri , Laura Mersini , Carolina J. Odman , Mark Trodden

Combining cosmic microwave background (CMB) data from Planck satellite data, Baryon Acoustic Oscillations (BAO) measurements and Type Ia supernovae (SNe Ia) data, we obtain the bounds on total neutrino masses $M_\nu$ with the approximation…

宇宙学与河外天体物理 · 物理学 2020-10-19 Zhenjie Liu , Haitao Miao

We investigate the bounds on the sum of neutrino masses in a cosmic-acceleration scenario where the equation of state $w(z)$ of dark energy (DE) is constructed in a model-independent way, using a basis of principal components (PCs) that are…

宇宙学与河外天体物理 · 物理学 2019-09-11 Ana Diaz Rivero , V. Miranda , Cora Dvorkin

I consider a scenario proposed by Fardon, Nelson and Weiner where dark energy and neutrinos are connected. As a result, neutrino masses are not constant but depend on the neutrino number density. By examining the full equation of state for…

高能物理 - 唯象学 · 物理学 2009-11-10 R. D. Peccei

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

In this followup to Phys. Rev. D 75, 053001 (2007) [arXiv:hep-ph/0608060] we report updated constraints on neutrino mass-mixing parameters, in light of recent neutrino oscillation data (KamLAND, SNO, and MINOS) and cosmological observations…

高能物理 - 唯象学 · 物理学 2010-05-12 G. L. Fogli , E. Lisi , A. Marrone , A. Melchiorri , A. Palazzo , A. M. Rotunno , P. Serra , J. Silk , A. Slosar

Double beta decay is indispensable to solve the question of the neutrino mass matrix together with $\nu$ oscillation experiments. The most sensitive experiment - since eight years the HEIDELBERG-MOSCOW experiment in Gran-Sasso - already…

高能物理 - 唯象学 · 物理学 2016-09-06 H. V. Klapdor-Kleingrothaus

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…

宇宙学与河外天体物理 · 物理学 2019-07-09 Amol Upadhye
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