2019 Workshop on Polarized Sources, Targets, and Polarimetry

Search for Electric Dipole Moments of charged particles with polarised beams in storage rings

23 Sept 2019, 13:40

20m

Downtown Holiday Inn

Polarization Applications for Fundamental Symmetry Tests Fundamental Symmetry Tests

Speaker

Prof. Paolo Lenisa (University of Ferrara and INFN - Ferrara (Italy))

Description

The Electric Dipole Moment (EDM) of elementary particles, including hadrons, is considered as one of the most powerful tools 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 off􏰀er the possibility to measure EDMs of charged particles by observing the in􏰁fluence of the EDM on the spin motion. A dedicated program is underway at the COSY storage ring to develop the required experimental and technical tools.
A step-wise approach starting with a proof-of-principle experiment at the existing storage ring Cooler Synchrotron COSY at Forschungszentrum Jülich, followed by an electrostatic prototype ring allowing for a simultaneous operation of counter circulating beams in order to cancel systematic e􏰀ffects, to the design of a dedicated 500 m circumference storage ring will be presented.

Presentation materials

PSTP19_LENISA.pdf