# DISCRETE 2018

26-30 November 2018
Europe/Vienna timezone

## Electric Dipole Moment Measurements at Storage Rings

28 Nov 2018, 14:00
25m
Sitzungssaal

#### Sitzungssaal

Austrian Academy of Sciences, Dr.-Ignaz-Seipel-Platz 2, 1010 Vienna, AUSTRIA
Invited Talk [1] T, C, P, CP and CPT symmetries

### Speaker

Jorg Pretz (Rheinisch Westfaelische Tech. Hoch. (DE))

### Description

The Electric Dipole Moment (EDM) of elementary particles, including hadrons, is
considered as one of the most powerful tool to study CP-violation beyond the Standard Model.
Such CP-violating mechanisms are searched for to
explain the dominance of matter over anti-matter in our universe.

Up to now EDM experiments concentrated on neutral systems, namely neutron, atoms and
molecules. Storage rings offer the possibility to measure EDMs of charged
particles by observing the influence of the EDM on the spin motion.
First steps towards in EDM measurement can be done
at the Cooler Synchrotron COSY at the Forschungszentrum Jülich.
It provides polarized protons and deuterons up to a momentum of 3.7 GeV/$c$,
making it an ideal starting point for such an experimental programme.
First results of test measurements at COSY and plans towards the
construction of a new type of storage ring will be presented.

Content of the contribution Experiment

### Primary author

Jorg Pretz (Rheinisch Westfaelische Tech. Hoch. (DE))