Hyperfine Interactions

, 239:61 | Cite as

Beam-based alignment tests at the Cooler Synchrotron (COSY)

  • Tim WagnerEmail author
  • on behalf of JEDI Collaboration
Part of the following topical collections:
  1. Proceedings of the 7th Symposium on Symmetries in Subatomic Physics (SSP 2018), Aachen, Germany, 10-15 June 2018


The Jülich Electric Dipole moment Investigation (JEDI) Collaboration works on a measurement of the electric dipole moment (EDM) of charged hadrons using a storage ring. Such a dipole moment would violate \(\mathcal {CP}\) symmetry, providing a possible option for physics beyond the Standard Model. The JEDI experiment requires a small beam orbit root mean square (RMS) in order to control systematic uncertainties. Therefore an ongoing upgrade of the Cooler Synchrotron (COSY) at Forschungszentrum Jülich is done in order to improve the precision of the beam position. The first results of the beam based alignment method, that was tested with one quadrupole in the ring, will be discussed.


Beam-based alignment Quadrupole Cooler Synchrotron COSY 



The author wishes to thank the staff of COSY for providing excelent working conditions and for their support concerning the technical aspects of the experiment. He also thanks all involved members of the JEDI Collaboration and of the Institut für Kernphysik of Forschungszentrum Jülich. This work has been financially supported by Forschungszentrum Jülich GmbH and by an ERC Advanced-Grant (srEDM #694340) of the European Union.


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    Portmann, G., Robin, D., Schachinger, L.: Automated beam based alignment of the ALS quadrupoles. Conf. Proc. C950501, 2693–2695 (1996)Google Scholar

Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  1. 1.Institut für KernphysikForschungszentrum JülichJülichGermany

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