Detecting neutrino mass difference with cosmology

Slosar, Anže

doi:10.1103/physrevd.73.123501

Cited by 35 publications

(33 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, there is some sensitivity to individual masses, due to features in the power spectrum arising from the different redshifts when the neutrinos become nonrelativistic. The effects are weak (Slosar 2006), but a large, deep weak lensing survey in combination with Planck, could exploit this signal and tighten the above constraints further. Thus, the LSST survey, together with CMB observations, could offer valuable constraints on neutrino properties highly complementary to particle physics parameters.…”

Section: Measurement Of the Sum Of The Neutrino Massmentioning

confidence: 99%

LSST Science Book, Version 2.0

Abell¹,

Burke²,

Hamuy³

et al. 2009

553

653

View full text Add to dashboard Cite

Prepared by the LSST Science Collaborations, with contributions from the LSST Project. PrefaceMajor advances in our understanding of the Universe over the history of astronomy have often arisen from dramatic improvements in our ability to observe the sky to greater depth, in previously unexplored wavebands, with higher precision, or with improved spatial, spectral, or temporal resolution. Aided by rapid progress in information technology, current sky surveys are again changing the way we view and study the Universe, and the next-generation instruments, and the surveys that will be made with them, will maintain this revolutionary progress. Substantial progress in the important scientific problems of the next decade (determining the nature of dark energy and dark matter, studying the evolution of galaxies and the structure of our own Milky Way, opening up the time domain to discover faint variable objects, and mapping both the inner and outer Solar System) all require wide-field repeated deep imaging of the sky in optical bands.The wide-fast-deep science requirement leads to a single wide-field telescope and camera which can repeatedly survey the sky with deep short exposures. The Large Synoptic Survey Telescope (LSST), a dedicated telecope with an effective aperture of 6.7 meters and a field of view of 9.6 deg 2 , will make major contributions to all these scientific areas and more. It will carry out a survey of 20,000 deg 2 of the sky in six broad photometric bands, imaging each region of sky roughly 2000 times (1000 pairs of back-to-back 15-sec exposures) over a ten-year survey lifetime.The LSST project will deliver fully calibrated survey data to the United States scientific community and the public with no proprietary period. Near real-time alerts for transients will also be provided worldwide. A goal is worldwide participation in all data products. The survey will enable comprehensive exploration of the Solar System beyond the Kuiper Belt, new understanding of the structure of our Galaxy and that of the Local Group, and vast opportunities in cosmology and galaxy evolution using data for billions of distant galaxies. Since many of these science programs will involve the use of the world's largest non-proprietary database, a key goal is maximizing the usability of the data. Experience with previous surveys is that often their most exciting scientific results were unanticipated at the time that the survey was designed; we fully expect this to be the case for the LSST as well.The purpose of this Science Book is to examine and document in detail science goals, opportunities, and capabilities that will be provided by the LSST. The book addresses key questions that will be confronted by the LSST survey, and it poses new questions to be addressed by future study. It contains previously available material (including a number of White Papers submitted to the ASTRO2010 Decadal Survey) as well as new results from a year-long campaign of study and evaluation. This book does not attempt to be complete; there are many ...

show abstract

Section: Measurement Of the Sum Of The Neutrino Massmentioning

confidence: 99%

LSST Science Book, Version 2.0

Abell¹,

Burke²,

Hamuy³

et al. 2009

553

653

View full text Add to dashboard Cite

show abstract

“…Generally, if the mass distribution of neutrino species is non-degenerate, the constraints on total neutrino mass from cosmological data may change. This happens for several reasons (see, e.g., Slosar, 2006), in particular since most massive neutrino species become non-relativistic earlier and spectrum of linear density perturbations is suppressed at smaller scales. Also, if neutrino mass is larger then approximately 0.5 eV, they become non-relativistic before recombination and significantly change angular power spectrum of CMB anisotropy.…”

Section: Different Mass Distributions Of Neutrino Speciesmentioning

confidence: 99%

Cosmological parameters constraints from galaxy cluster mass function measurements in combination with other cosmological data

Burenin

Vikhlinin

2012

Astron. Lett.

View full text Add to dashboard Cite

-We present the cosmological parameters constraints obtained from the combination of galaxy cluster mass function measurements (Vikhlinin et al., 2009a,b) with new cosmological data obtained during last three years: updated measurements of cosmic microwave background anisotropy with Wilkinson Microwave Anisotropy Probe (WMAP) observatory, and at smaller angular scales with South Pole Telescope (SPT), new Hubble constant measurements, baryon acoustic oscillations and supernovae Type Ia observations. New constraints on total neutrino mass and effective number of neutrino species are obtained. In models with free number of massive neutrinos the constraints on these parameters are notably less strong, and all considered cosmological data are consistent with non-zero total neutrino mass Σmν ≈ 0.4 eV and larger than standard effective number of neutrino species, Neff ≈ 4. These constraints are compared to the results of neutrino oscillations searches at short baselines. The updated dark energy equation of state parameters constraints are presented. We show that taking in account systematic uncertainties, current cluster mass function data provide similarly powerful constraints on dark energy equation of state, as compared to the constraints from supernovae Type Ia observations.

show abstract

“…Finally, we consider the neutrinos to be completely mass degenerate given that current inferred bounds are much greater than the splitting hierarchies. The potential of future surveys to discriminate the mass hierarchy has been discussed in [15][16][17][18][19][20].…”

mentioning

confidence: 99%

Upper Bound of 0.28 eV on Neutrino Masses from the Largest Photometric Redshift Survey

2010

View full text Add to dashboard Cite

We present a new upper limit of mν ≤ 0.28 (95% CL) on the sum of the neutrino masses assuming a flat ΛCDM cosmology. This relaxes slightly to mν ≤ 0.34 and mν ≤ 0.47 when quasi non-linear scales are removed and w = −1, respectively. These bounds are derived from a new photometric redshift catalogue of over 700,000 Luminous Red Galaxies (MegaZ DR7) with a volume of 3.3 (Gpc h −1 ) 3 , extending over the redshift range 0.45 < z < 0.65 and up to angular scales of max = 300. The data are combined with WMAP 5-year CMB fluctuations, Baryon Acoustic Oscillations (BAO), type 1a Supernovae (SNe) and an HST prior on the Hubble parameter. This is the first combined constraint from a photometric redshift catalogue with other cosmological probes. When combined with WMAP this data set proves to be as constraining as the addition of all SNe and BAO data available to date. The upper limit is one of the tightest and 'cleanest' constraints on the neutrino mass from cosmology or particle physics. Furthermore, if the aforementioned bounds hold, they all predict that current-to-next generation neutrino experiments, such as KATRIN, are unlikely to obtain a detection.

show abstract

Detecting neutrino mass difference with cosmology

Cited by 35 publications

References 35 publications

LSST Science Book, Version 2.0

LSST Science Book, Version 2.0

Cosmological parameters constraints from galaxy cluster mass function measurements in combination with other cosmological data

Upper Bound of 0.28 eV on Neutrino Masses from the Largest Photometric Redshift Survey

Contact Info

Product

Resources

About