Status and prospects of neutrino oscillations: terrestrial sources

Markoff, D. M.

doi:10.1088/0954-3899/29/8/367

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…The tightest constraint on the neutrino mass comes from cosmology; the current upper limit on the sum of neutrino mass states is 120 meV [6]. The design sensitivity of KATRIN is 200 meV, limited by smearing from vibrational modes in gaseous tritium [7]. Later phases of Project-8…”

Section: Experimental Principlesmentioning

confidence: 99%

PTOLEMY: Relic neutrino direct detection

Mead,

Apponi,

Betti

et al. 2024

Proceedings of XVIII International Conference on Topics in Astroparticle and Underground Physics — PoS(TAUP2023)

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Though their imprint upon the CMB and large-scale structure of the universe remains to this day, Big Bang relic neutrinos (the C𝜈B) have never been directly observed. This remains an outstanding test of the Standard Model in CDM cosmology and would provide the earliest picture of the universe at only one second after the Big Bang. PTOLEMY aims to make the first direct observation of the C𝜈B by resolving the 𝛽-decay endpoint of atomic tritium. The concept relies upon amassing a target of atomic tritium, developing RF-based trigger and tracking, an EM transverse drift filter, and a cryogenic micro-calorimeter -each of which present novel R&D challenges. A prototype will soon be based at Gran Sasso National Laboratory. Intermediate measurements will be made of the lowest neutrino mass ahead of C𝜈B physics runs set to begin in the 2030s.

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Section: Experimental Principlesmentioning

confidence: 99%

PTOLEMY: Relic neutrino direct detection

Mead,

Apponi,

Betti

et al. 2024

Proceedings of XVIII International Conference on Topics in Astroparticle and Underground Physics — PoS(TAUP2023)

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Constraints on neutrino masses from a galactic supernova neutrino signal at present and future detectors

Nardi

Zuluaga

2005

Nuclear Physics B

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We study the constraints on neutrino masses that could be derived from the observation of a Galactic supernova neutrino signal with present and future neutrino detectors. Our analysis is based on a recently proposed method that uses the full statistics of neutrino events and does not depend on particular astrophysical assumptions. The statistical approach, originally justified mainly in terms of intuitive reasoning, is put on a more solid basis by means of Bayesian inference reasoning. Theoretical uncertainties in the neutrino signal time profiles are estimated by applying the method to two widely different supernova models. Present detectors can reach a sensitivity down to 1 eV. This is better than limits from tritium β-decay experiments, competitive with the most conservative results from neutrinoless double β-decay, less precise but less dependent from prior assumptions than cosmological bounds. Future megaton waterČerencov detectors will allow for about a factor of two improvement. However, they will not be competitive with the next generation of laboratory experiments.

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Solar neutrino spectroscopy

Wurm

2017

Physics Reports

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More than forty years after the first detection of neutrinos from the Sun, the spectroscopy of solar neutrinos has proven to be an on-going success story. The long-standing puzzle about the observed solar neutrino deficit has been resolved by the discovery of neutrino flavor oscillations. Today's experiments have been able to solidify the standard MSW-LMA oscillation scenario by performing precise measurements over the whole energy range of the solar neutrino spectrum.This article reviews the enabling experimental technologies: On the one hand mutlikiloton-scale water Cherenkov detectors performing measurements in the high-energy regime of the spectrum, on the other end ultrapure liquid-scintillator detectors that allow for a lowthreshold analysis. The current experimental results on the fluxes, spectra and time variation of the different components of the solar neutrino spectrum will be presented, setting them in the context of both neutrino oscillation physics and the hydrogen fusion processes embedded in the Standard Solar Model.Finally, the physics potential of state-of-the-art detectors and a next-generation of experiments based on novel techniques will be assessed in the context of the most interesting open questions in solar neutrino physics: a precise measurement of the vacuum-matter transition curve of electron-neutrino oscillation probability that offers a definitive test of the basic MSW-LMA scenario or the appearance of new physics; and a first detection of neutrinos from the CNO cycle that will provide new information on solar metallicity and stellar physics.

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Status and prospects of neutrino oscillations: terrestrial sources

Cited by 3 publications

References 15 publications

PTOLEMY: Relic neutrino direct detection

PTOLEMY: Relic neutrino direct detection

Constraints on neutrino masses from a galactic supernova neutrino signal at present and future detectors

Solar neutrino spectroscopy

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