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New Instruments for Neutrino Relics and Mass

8 December 2008
CERN
Europe/Zurich timezone

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Contribution List

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  1. 2. Welcome
    Dr Bob McElrath (CERN)
    08/12/2008, 08:45
    Welcome and suggest goals for the workshop
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  2. 3. Oscillations of Moessbauer neutrinos
    Mr Joachim Kopp (Max Planck Institute for Nuclear Physics)
    08/12/2008, 09:00
    We discuss the phenomenology of the Mössbauer neutrino experiment proposed recently by Raghavan. In particular, we will show that Mössbauer neutrinos do oscillate, in spite of their extremely small energy uncertainty. Using a quantum field theoretical approach, we will compute the combined rate of Mössbauer neutrino production, oscillation and detection, and discuss the arising coherence...
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  3. 4. One-dimensional ordering in high-energy ion beams
    Dr Håkan Danared (Manne Siegbahn Laboratory)
    08/12/2008, 09:25
    A sudden reduction of momentum spread, and under certain conditions also of Schottky-noise power, has been observed with electron-cooled beams at a few ion storage rings. This has been interpreted as an effect of one-dimensional ordering of the beams, such that the ions line up after one another in the ring. A brief overview of subject of beam crystallization or beam ordering is given,...
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  4. 5. Contribution of Penning trap mass spectrometry to neutrino physics
    Dr Szilard Nagy (MPI-K)
    08/12/2008, 09:50
    Penning traps provide nowadays highest sensitivity, precision and accuracy for atomic mass spectrometry [1]. In the combined strong magnetic field and weak electric field of a Penning trap a charged particle can be stored and observed for long time thus frequency comparisons well below ppb can be performed. Different techniques such as non-destructive detection with...
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  5. 6. Bounds on sterile neutrinos using full kinematic reconstruction of radioactive decays
    Mr Fedor Bezrukov (MPI fur Kernphysik)
    08/12/2008, 10:15
    Current bounds on mixing angles for light (several keV range) sterile neutrinos are rather weak, though theoretically it is a very interesting region. An interesting experimental technique for analysing such neutrinos is full kinematic reconstruction of the nuclear beta decay. This method, in principle, allows an event by event measurement of the neutrino mass,...
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  6. 7. The MARE project: the calorimetric approach potential
    Angelo Nucciotti (INFN Milano-Bicocca / Dip. di Fisica U. di Milano-Bicocca)
    08/12/2008, 11:10
    The international project "Microcalorimeter Arrays for a Rhenium Experiment" (MARE) aims at a direct and calorimetric measurement of the electron antineutrino mass with sub-electronvolt sensitivity. The experimental strategy consists in analysing the beta spectrum of 187Re near the end-point looking for the spectral distortion expected for a finite antineutrino mass....
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  7. 8. Orbital electron capture decay of hydrogen-like ions (GSI)
    Dr Christophor Kozhuharov (GSI)
    08/12/2008, 11:40
    At GSI Darmstadt, we have studied the decay of highly-charged heavy ions, stored and cooled in the experimental storage ring, ESR, by means of time-resolved Schottky-noise mass spectroscopy. The Fast Fourier Transform, FFT, of the Schottky noise is a non-destructive, non-instantaneous detection method, sensitive to a single heavy ion circulating in the ring. We have...
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  8. 9. The Karlsruhe Tritium Neutrino Experiment KATRIN
    Prof. Christian Weinheimer (University of Münster, Germany)
    08/12/2008, 12:10
    The KArlsruher TRItium Neutrino experiment KATRIN is going to search for the neutrino mass from the endpoint region of the tritium beta decay spectrum with one order of magnitude higher sensitivity of 0.2 eV/c2 compared to previous direct neutrino mass experiments. This sensitvity will allow to distinguish between hierarchical and quasi-degenerate neutrino mass...
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  9. 1. The electron endpoint from accelerated ions - a new route to the neutrino mass scale?
    Christopher Orme (Durham University)
    08/12/2008, 14:00
    We introduce the possibility of determining the neutrino mass scale from monitoring the decays of a crystalised beam. Through the careful control of the beam momentum, one can perform a 'cut' on the electron spectrum with only electrons near the endpoint traveling backwards in the laboratory frame. The idea is introduced with the results from preliminary simulations presented.
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  10. 10. Measuring the neutrino mass from large scale structure
    Prof. Steen Hannestad (University of Aarhus)
    08/12/2008, 14:25
    Future large scale structure surveys provide one of the most promising techniques for probing the neutrino mass. I will present results from detailed N-body simulations of structure formation in models with neutrino mass. Such simulations are necessary for the next generation of surveys such as the LSST
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  11. 11. The GSI anomaly and neutrino mixing
    Prof. Manfred Lindner (Max Planck Institut fuer Kernphysik)
    08/12/2008, 14:50
    It will be shown why the GSI anomaly can in principle not be due to neutrino mixing.
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  12. 0. Coherent target effects for atomic neutrino mass spectroscopy and detection of relic neutrino
    Motohiko Yoshimura (Okayama University)
    08/12/2008, 15:45
    New experimental method using isolated atoms and molecules implanted in sold matrix is explained, whose goal is to measure all 3 neutrino masses and the unknown mixing angle along with determination of Majorana or Dirac particle. If the method works, it is expected to detect the cosmic relic neutrino, too.
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  13. 14. Emergent Electroweak Gravity
    Dr Bob McElrath (CERN)
    08/12/2008, 16:15
    We show that the cosmic neutrino background is a superfluid today, and the quantum numbers of the order parameter give a goldstone graviton, with a coupling numerically similar to the actual Newton's constant.
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  14. 12. Relic neutrino detection using beta decaying nuclei
    Dr Alfredo Giuseppe Cocco (Istituto Nazionale di Fisica Nucleare)
    08/12/2008, 16:40
    We present a study on the interaction of low energy electron neutrinos on nuclei that undergo both beta decay and electron capture. We show that, due to the absence of an energy threshold and to the relatively high value of the cross section, these processes are the only ones to date having a realistic chance to unambiguously detect the yet undiscovered cosmological...
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  15. 13. Experimental challenges towards the detection of relic neutrinos with unstable nuclei
    Dr Marcello Messina (University of Bern)
    08/12/2008, 17:05
    In this talk I will review the experimental challenges towards the detection of relic neutrinos. The talk is based on a paper where the idea of detecting relic neutrinos with instable nucli is renewed. Different target nucli and experimental approaches are considered and, the advantage and the difficulties of different experimental techniques are discussed.
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