Journal Article

FZJ-2025-02879

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Proof-of-principle demonstration of a pilot bunch comagnetometer in a stored beam

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

2025
APS College Park, MD

This record in other databases:    

Please use a persistent id in citations: doi:10.1103/PhysRevResearch.7.023257  doi:10.34734/FZJ-2025-02879

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 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.

---

Contributing Institute(s):

1. Experimentelle Hadrondynamik (IKP-2)
2. Experimentelle Hadronstruktur (IKP-1)
3. Kernphysikalische Großgeräte (IKP-4)
4. Theorie der Starken Wechselwirkung (IAS-4)
5. Zentralinstitut für Technologie (ZEA-1)
6. Zentralinstitut für Elektronik (ZEA-2)

Research Program(s):

1. 613 - Matter and Radiation from the Universe (POF4-613) (POF4-613)
2. 621 - Accelerator Research and Development (POF4-621) (POF4-621)
3. srEDM - Search for electric dipole moments using storage rings (694340) (694340)

Experiment(s):

1. Jülich Electric Dipole moment Investigations

Appears in the scientific report 2025

---

Database coverage:
; ; ; ; Article Processing Charges ; Clarivate Analytics Master Journal List ; DOAJ Seal ; Emerging Sources Citation Index ; Fees ; SCOPUS ; Web of Science Core Collection

---