36 research outputs found
An Improved Neutron Electric Dipole Moment Experiment
A new measurement of the neutron EDM, using Ramsey's method of separated
oscillatory fields, is in preparation at the new high intensity source of
ultra-cold neutrons (UCN) at the Paul Scherrer Institute, Villigen, Switzerland
(PSI). The existence of a non-zero nEDM would violate both parity and time
reversal symmetry and, given the CPT theorem, might lead to a discovery of new
CP violating mechanisms. Already the current upper limit for the nEDM
(|d_n|<2.9E-26 e.cm) constrains some extensions of the Standard Model.
The new experiment aims at a two orders of magnitude reduction of the
experimental uncertainty, to be achieved mainly by (1) the higher UCN flux
provided by the new PSI source, (2) better magnetic field control with improved
magnetometry and (3) a double chamber configuration with opposite electric
field directions.
The first stage of the experiment will use an upgrade of the RAL/Sussex/ILL
group's apparatus (which has produced the current best result) moved from
Institut Laue-Langevin to PSI. The final accuracy will be achieved in a further
step with a new spectrometer, presently in the design phase.Comment: Flavor Physics & CP Violation Conference, Taipei, 200
A next generation measurement of the electric dipole moment of the neutron at the FRM II
In this paper we discuss theoretical motivations and the status of experimental searches to find time-reversal symmetry-violating electric dipole moments (EDM). Emphasis is given to a next generation search for the EDM of the
neutron, which is currently being set up at the FRM II neutron source in Garching, with an ultimate sensitivity goal of 5 Ă 10â28 cm (3Ï). The layout of the apparatus
allows for the detailed investigation of systematic effects by combining various means of magnetic field control and polarized UCN optics. All major components of the
installations are portable and can be installed at the strongest available UCN beam
Characterization of a purification system for radioactive vacuum exhaust gases
EURISOL DS/Task5/TN-08-03Technical note upon completion of mileston
Localisation of volatile isotopes on cryotraps
Contribution for the Annual Report 2006 of the Maier-Leibnitz-Laboratory, Garchin
Confinement of volatile radioactivity from an open fission source in a cryotrap
EURISOL DS/Task5/TN-08-02Technical note upon completion of mileston
DNSS - Deutsch-Norwegische Zusammenarbeit SPACE-SUBSEA - Lebenserhaltungssysteme (technische Belange) Abschlussbericht der Phase 2
SIGLETIB: AC 1000(3416) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman