10–14 Oct 2010
PSI
Europe/Zurich timezone

The CryoEDM Experiment at ILL

13 Oct 2010, 15:00
30m
Main Auditorium (WHGA/001) (PSI)

Main Auditorium (WHGA/001)

PSI

CH-5232 Villigen PSI
Oral Searches for permanent electric dipole moments Session We - 3

Speaker

Prof. Philip Harris (University of Sussex)

Description

The CryoEDM collaboration is building an experiment to measure the electric dipole moment (EDM) of the neutron with a precision, initially, of ~3 x 10^{-27} e.cm, and ultimately up to an order of magnitude beyond that. The experiment relies upon superthermal production of ultracold neutrons within a volume of superfluid helium, held at a temperature of 0.5 K. The Ramsey technique of separated oscillatory fields will be used to determine the Larmour precession frequency of batches of ultracold neutrons within a highly uniform and constant magnetic field: changes in this frequency that are proportional to the strength of an electric field applied parallel or antiparallel to the magnetic field are indicative of an EDM. This presentation will discuss the progress to date and the future development plans of this experiment, including some details of the potential systematic uncertainties. This presentation is given by the author on behalf of the CryoEDM collaboration.

Primary author

Prof. Philip Harris (University of Sussex)

Presentation materials