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The matter-antimatter asymmetry cannot be explained by the Standard Model(SM) of elementary particle physics. According to A. Sakharov, additionalsources of $\mathcal{CP}$-Violating phenomena are needed to understand thematter-antimatter asymmetry. Electric Dipole Moments (EDMs) of subatomicelementary particles may provide additional $\mathcal{CP}$ violation, sincethey violate $\mathcal{T}$ (and $\mathcal{P}$) symmetry. Polarized beams instorage rings offer the possibility to measure EDMs of charged particles byobserving the influence of the EDM on the spin motion. The Cooler Synchrotron(COSY) at Forschungszentrum J\"ulich provides polarized protons and deuteronsup to a momentum of 3.7 GeV/c and is therefore an ideal starting point for theJEDI - Collaboration (J\"ulich Electric Dipole moment Investigations) toperform the first direct measurement of the deuteron EDM. This documentdescribes recent results of EDM activities at COSY.

The Search for Electric Dipole Moments of Charged Particles in Storage Rings