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...
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,...
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...
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,...
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....
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...
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...
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.
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
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.
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.
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.
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...
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.
