Mainz 2022 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 5: Hadron Accelerators – New Devices and Techniques

AKBP 5.3: Talk

Tuesday, March 29, 2022, 14:30–14:45, AKBP-H13

Spin tune response to vertical orbit correction at COSY — •Artem Saleev for the JEDI collaboration — University of Ferrara, Ferrara, Italy

Searches of electric dipole moments (EDM) of charged particles in pure magnetic rings, such as COSY, or electrostatic and hybrid magnetic-electric storage rings, planned in the future, require new methods to disentangle the EDM signal from the large background produced by magnetic dipole moments. In these experiments, the sources of systematic background are in-plane magnetic fields. It is important to distinguish the origins of the in-plane magnetic fields, which could be produced intentionally by vertical orbit correction to keep the beam on a closed path, or unintentionally due to the alignment errors of the magnets. We propose to use the method of spin tune mapping to determine the relative importance of the two origins. Such method was successfully tested at COSY when local vertical orbit correction was applied.