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Spin tune mapping at COSY

  • Artem SaleevEmail author
  • for the JEDI Collaboration
Article
  • 11 Downloads
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

Abstract

We developed a method to control the systematic background for Electric Dipole Moment searches in all-magnetic storage rings at the level of ≈ 10− 20e ⋅cm for deuterons at beam momentum 970 MeV/c. The method is based on a principle of spin tune modulation in a predictable way and was tested at cooler synchrotron COSY in Forschungszentrum Juelich. Two static solenoids were used as spin rotators. A special scheme of precise spin tune measurements at different spin rotation angles in solenoids allowed to determine the presence of systematic background.

Keywords

Spin tune Imperfections Electric dipole moment 

PACS

13.40.Em 11.30.Er 29.20.Dh 29.27.Hj 

Notes

Acknowledgements

A. Saleev is supported by a Grant from the Russian Science Foundation (Grant No. RNF-16-12-10151). He gratefully acknowledges his support by Nuclear Physics Institute at Forschungszentrum Juelich.

References

  1. 1.
    JEDI Collaboration, proposals available from http://collaborations.fz-juelich.de/ikp/jedi/
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    Eversmann, D., et al.: New method for a continuous determination of the spin tune in storage rings and implications for precision experiments. Phys. Rev. Lett. 115, 094801 (2015).  https://doi.org/10.1103/PhysRevLett.115.094801 ADSCrossRefGoogle Scholar
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    Saleev, A., et al.: Spin tune mapping as a novel tool to probe the spin dynamics in storage rings. Phys. Rev. Accel. Beams 20, 072801 (2017)ADSCrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Samara National Research UniversitySamaraRussia
  2. 2.Nuclear Physics InstituteForschungszentrum JuelichJuelichGermany

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