Conveners
Tu - 4
- Session Chair: Peter Geltenbort (Institut Laue-Langevin)
Mr
Sohtaro Kanda
(The University of Tokyo)
10/09/2013, 16:30
Oral
Muonium is the bound state of a positive muon and an electron. In the standard model of particle physics, muonium is considered as the two-body system of structureless leptons. There is no severe strong interaction effects as in a hydrogen atom, or annihilation effects and intensive recoil effects as in a positronium. Therefore, muonium is the appropriate system for precision test of...
Christine Klauser
(Institut Laue-Langevin, Atominstitut TU Wien)
10/09/2013, 16:45
Oral
Correlation coefficients of the polarized neutron beta decay offer a way to test the standard
model by precision measurements. One of the currently leading systematic errors is the
neutron polarization. State-of-the-art polarizing super mirrors in the X-SM geometry deliver
about 99.7(1)% polarization.
We present recent developments in cold neutron polarization, based on the opaque test...
Dr
Florian Martin
(Institut Laüe Langevin)
10/09/2013, 17:00
Oral
A current research and development program at the ILL has the goal to bring production of ultracold neutrons (UCN) in superfluid helium to maturity for applications in experiments at room temperature. While experiments with a first prototype had resulted in a UCN density of 55 per ccm, significant progress was made with an improved, second apparatus.
SUN2 is composed of a 4 liters UCNs...
Mr
Jan Peter Karch
(Institute of Physics, University of Mainz)
10/09/2013, 17:15
Oral
Ultracold neutrons (UCN) are a powerful tool for addressing many fascinating questions in particle physics, nuclear physics, and astronomy.
UCNs offer unique opportunities for investigating the properties of the free neutron, such as its lifetime, with exceptionally high precision. In order to tackle the obvious count rate limitations, super-thermal UCN sources are now under construction at...
Mr
Dieter Ries
(PSI)
10/09/2013, 17:30
Oral
The UCN source at the Paul Scherrer Institute is being successfully operated since 2011 and provides UCN at three beam ports, most importantly to the nEDM experiment.
We will explain the operation principle of the source and the way of UCN production.
The current status of the source and the progress made since start-up,
will be presented, together with ongoing optimisations and...
