Proof-of-principle demonstration of a pilot bunch comagnetometer in a stored beam

Slim, J.; Canale, N.; Müller, F.; Keshelashvili, I.; Lomidze, N.; Silenko, A.; Grigoryev, K.; Poncza, V.; Gebel, R.; Shergelashvili, D.; Shmakova, V.; Lorentz, B.; Hetzel, J.; Stroeher, Hans; Pretz, J.; Żurek, M.; Tabidze, M.; Karanth, S.; Melnikov, A.; Valdau, Y.; Breitkreutz, B.; Abusaif, F.; Laihem, K.; Beyß, M.; Lenisa, P.; Hejny, V.; Magiera, A.; Wüstner, P.; Shurkhno, N.; Barion, L.; Kononov, A.; Böhme, C.; Vitz, M.; Grzonka, D.; Dymov, S.; Stassen, R.; Alberdi, B.; Lehrach, A.; Gaisser, M.; Siddique, S.; Tagliente, G.; Stephenson, E. J.; Wrońska, A.; Aksentev, A.; Javakhishvili, O.; Nikolaev, N. N.; Rathmann, F.; Saleev, A.; Soltner, H.; Pesce, A.; Fröhlich, N.-O.; Wagner, T.; Nass, A.; Macharashvili, G.; Aggarwal, A.; Mchedlishvili, D.; Kacharava, A.; Kamerdzhiev, V.; Prasuhn, D.; Ciullo, G.; Wirzba, A.; Bekman, I.; Andres, A.

doi:10.1103/PhysRevResearch.7.023257

TY  - JOUR
AU  - Slim, J.
AU  - Rathmann, F.
AU  - Andres, A.
AU  - Hejny, V.
AU  - Nass, A.
AU  - Kacharava, A.
AU  - Lenisa, P.
AU  - Nikolaev, N. N.
AU  - Pretz, J.
AU  - Saleev, A.
AU  - Shmakova, V.
AU  - Soltner, H.
AU  - Abusaif, F.
AU  - Aggarwal, A.
AU  - Aksentev, A.
AU  - Alberdi, B.
AU  - Barion, L.
AU  - Bekman, I.
AU  - Beyß, M.
AU  - Böhme, C.
AU  - Breitkreutz, B.
AU  - Canale, N.
AU  - Ciullo, G.
AU  - Dymov, S.
AU  - Fröhlich, N.-O.
AU  - Gebel, R.
AU  - Gaisser, M.
AU  - Grigoryev, K.
AU  - Grzonka, D.
AU  - Hetzel, J.
AU  - Javakhishvili, O.
AU  - Kamerdzhiev, V.
AU  - Karanth, S.
AU  - Keshelashvili, I.
AU  - Kononov, A.
AU  - Laihem, K.
AU  - Lehrach, A.
AU  - Lomidze, N.
AU  - Lorentz, B.
AU  - Macharashvili, G.
AU  - Magiera, A.
AU  - Mchedlishvili, D.
AU  - Melnikov, A.
AU  - Müller, F.
AU  - Pesce, A.
AU  - Poncza, V.
AU  - Prasuhn, D.
AU  - Shergelashvili, D.
AU  - Shurkhno, N.
AU  - Siddique, S.
AU  - Silenko, A.
AU  - Stassen, R.
AU  - Stephenson, E. J.
AU  - Stroeher, Hans
AU  - Tabidze, M.
AU  - Tagliente, G.
AU  - Valdau, Y.
AU  - Vitz, M.
AU  - Wagner, T.
AU  - Wirzba, A.
AU  - Wrońska, A.
AU  - Wüstner, P.
AU  - Żurek, M.
TI  - Proof-of-principle demonstration of a pilot bunch comagnetometer in a stored beam
JO  - Physical review research
VL  - 7
IS  - 2
SN  - 2643-1564
CY  - College Park, MD
PB  - APS
M1  - FZJ-2025-02879
SP  - 023257
PY  - 2025
AB  - 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 comagnetometer 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001513060300001
DO  - DOI:10.1103/PhysRevResearch.7.023257
UR  - https://juser.fz-juelich.de/record/1043476
ER  -

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