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| THPF032 |
Spin Tracking Simulations Towards Electric Dipole Moment Measurements at COSY |
3764 |
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- M. Rosenthal, A. Lehrach
FZJ, Jülich, Germany
- A. Lehrach, M. Rosenthal
RWTH, Aachen, Germany
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A strong hint for physics beyond the Standard Model would be achieved by direct measurements of charged particles' Electric Dipole Moments (EDMs). Measurements in magnetic storage rings using a resonant spin interaction of a radiofrequency Wien filter are proposed and needs to be scrutinized. Therefore, the calculation of phase space transfer maps for time-varying fields has been implemented into an extensions for the software framework COSY INFINITY. Benchmarking with measured data and analytical estimates for rf solenoid induced spin resonances are in good agreement. The dependence of polarization oscillation damping on the solenoid frequency could be confirmed. First studies of the rf Wien filter method reveal systematic limitations: Uncorrected Gaussian distributed misalignments of the COSY lattice quadrupoles with a standard deviation of 0.1 mm generate a similar buildup as an EDM of 5·10-19 e cm using this method.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2015-THPF032
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