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Volume 346 - 23rd International Spin Physics Symposium (SPIN2018) - Parallel Session: Fundamental Symmetries and Spin Physics Beyond the Standard Model (D. Dutta and A. Wirzba)
Gravity and Spin Dynamics for the EDM Search Experiments
N. Nikolaev,* F. Rathmann, A. Saleev, A.J. Silenko on behalf of the Jedi Collaboration
*corresponding author
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Pre-published on: 2019 August 19
Published on: 2019 August 23
We review the General Relativity induced precession of a spin of relativistic particles in storage rings in terrestrial environment. Besides the clasical geodetic effect there emerges a spin rotation
in focusing fields needed to compensate for the Earth gravity force acting on stored particles. The both effects have a structure of the spin-orbit interaction in the Earth gravitational field. Our major
point is a vindication of the 2012 Orlov-Flanagan-Semertzidis derivation of the GR induced false EDM signal in the all-electric frozen-spin rings. The experimental observation of the GR signal
would serve as an important indicator of a performance of a storage ring. We also comment on the GR effect in a hybrid $\overrightarrow{E}$x$\overrightarrow{B}$ ring envisioned by the CPEDM Collaboration.
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