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@INPROCEEDINGS{Vitz:1034954,
      author       = {Vitz, Maximilian and Lehrach, Andreas and Pretz, Jörg},
      title        = {{D}etermination of the {I}nvariant {S}pin {A}xis in a
                      {COSY} model using {B}mad},
      volume       = {2687},
      number       = {5},
      issn         = {1742-6588},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {FZJ-2025-00066},
      series       = {Journal of physics / Conference Series},
      pages        = {052024 -},
      year         = {2024},
      abstract     = {The matter-antimatter asymmetry might be understood by
                      investigating the EDM (ElectricDipole Moment) of elementary
                      particles. A permanent EDM of a subatomic particle
                      violatestime reversal and parity symmetry at the same time
                      and would be, with the currently achievableexperimental
                      accuracy, an indication for further CP violation than
                      established in the SM(Standard Model of Particle Physics).
                      The JEDI-Collaboration (J¨ulich Electric Dipole
                      momentInvestigations) in J¨ulich has performed a direct EDM
                      measurement for deuterons with the so-called precursor
                      experiments at the storage ring COSY (COoler SYnchrotron) by
                      measuringthe orientation of the ISA (Invariant Spin Axis).
                      In order to interpret the measured data andto disentangle a
                      potential EDM signal from systematic effects, spin tracking
                      simulations in anaccurate simulation model of COSY are
                      needed. Therefore a model of COSY was implementedusing the
                      software library Bmad. Systematic effects were considered by
                      including elementmisalignments, effective dipole shortening,
                      longitudinal fields and steerer kicks. These effectsrotate
                      the ISA in addition to the EDM and have to be analyzed and
                      understood. The mostrecent spin tracking results as well as
                      the methods to find the ISA are presented in this paper.},
      month         = {May},
      date          = {2023-05-07},
      organization  = {14th International Particle
                       Accelerator Conference, Venice (Italy),
                       7 May 2023 - 12 May 2023},
      cin          = {IKP-4 / IKP-2},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IKP-4-20111104 / I:(DE-Juel1)IKP-2-20111104},
      pnm          = {621 - Accelerator Research and Development (POF4-621)},
      pid          = {G:(DE-HGF)POF4-621},
      experiment   = {EXP:(DE-MLZ)EDM-20140101},
      typ          = {PUB:(DE-HGF)8 / PUB:(DE-HGF)7},
      UT           = {WOS:001250460600118},
      doi          = {10.1088/1742-6596/2687/5/052024},
      url          = {https://juser.fz-juelich.de/record/1034954},
}