Pilot bunch and co-magnetometry of polarized particles stored in a ring
Abstract
In polarization experiments at storage rings, one of the challenges is to maintain the spin-resonance condition of a radio-frequency spin rotator with the spin-precessions of the orbiting particles. Time-dependent variations of the magnetic fields of ring elements lead to unwanted variations of the spin precession frequency. We report here on a solution to this problem by shielding (or masking) one of the bunches stored in the ring from the high-frequency fields of the spin rotator, so that the masked pilot bunch acts as a co-magnetometer for the other signal bunch, tracking fluctuations in the ring on a time scale of about one second. While the new method was developed primarily for searches of electric dipole moments of charged particles, it may have far-reaching implications for future spin physics facilities, such as the EIC and NICA.
Keywords
Cite
@article{arxiv.2309.06561,
title = {Pilot bunch and co-magnetometry of polarized particles stored in a ring},
author = {J. Slim and F. Rathmann and A. Andres and V. Hejny and A. Nass and A. Kacharava and P. Lenisa and N. N. Nikolaev and J. Pretz and A. Saleev and V. Shmakova and H. Soltner and F. Abusaif and A. Aggarwal and A. Aksentev and B. Alberdi and L. Barion and I. Bekman and M. Beyß and C. Böhme and B. Breitkreutz and N. Canale and G. Ciullo and S. Dymov and N. -O. Fröhlich and R. Gebel and M. Gaisser and K. Grigoryev and D. Grzonka and J. Hetzel and O. Javakhishvili and V. Kamerdzhiev and S. Karanth and I. Keshelashvili and A. Kononov and K. Laihem and A. Lehrach and N. Lomidze and B. Lorentz and G. Macharashvili and A. Magiera and D. Mchedlishvili and A. Melnikov and F. Müller and A. Pesce and V. Poncza and D. Prasuhn and D. Shergelashvili and N. Shurkhno and S. Siddique and A. Silenko and S. Stassen and E. J. Stephenson and H. Ströher and M. Tabidze and G. Tagliente and Y. Valdau and M. Vitz and T. Wagner and A. Wirzba and A. Wrońska and P. Wüstner and M. Żurek},
journal= {arXiv preprint arXiv:2309.06561},
year = {2023}
}
Comments
5 pages, 3 figures + references + supplemental material (6 pages, 2 figures, 6 tables + references)