Journal Article

FZJ-2024-06338

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Spin decoherence and off-resonance behavior of radio-frequency-driven spin rotations in storage rings

Nikolaev, N. N. ; Rathmann, F. (Corresponding author)FZJ* ; Slim, J. ; Andres, A.FZJ* ; Hejny, V.FZJ* ; Nass, A.FZJ* ; Kacharava, A.FZJ* ; Lenisa, P. ; Pretz, J.FZJ* ; Saleev, A.FZJ* ; 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.FZJ* ; 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.FZJ* ; Karanth, S. ; Keshelashvili, I.FZJ* ; Kononov, A.FZJ* ; Laihem, K.FZJ* ; Lehrach, A.FZJ* ; Lomidze, N. ; Lorentz, B. ; Macharashvili, G. ; Magiera, A. ; Mchedlishvili, D.FZJ* ; Melnikov, A. ; Müller, F. ; Pesce, A. ; Poncza, V.FZJ* ; Prasuhn, D. ; Shergelashvili, D. ; Shurkhno, N.FZJ* ; Siddique, S.FZJ* ; Silenko, A. ; Stassen, R.FZJ* ; Stephenson, E. J. ; Stroeher, H.FZJ* ; Tabidze, M. ; Tagliente, G. ; Valdau, Y.FZJ* ; Vitz, M. ; Wagner, T. ; Wirzba, A.FZJ* ; Wrońska, A. ; Wüstner, P.FZJ* ; Żurek, M.

2024
American Physical Society College Park, MD

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Please use a persistent id in citations: doi:10.1103/PhysRevAccelBeams.27.111002  doi:10.34734/FZJ-2024-06338

Abstract: High-frequency driven resonant spin rotators are routinely used as standard instruments in polarization experiments in particle and nuclear physics. Maintaining the continuous exact parametric spin resonance condition of the equality of the spin rotator and the spin precession frequency during operation is one of the challenges. We present a detailed analytical description of the effects of detuning the exact spin resonance on the precessing vertical and in-plane components of the polarization. An important part of the formalism presented here is the consideration of experimentally relevant spin decoherence effects. Within the developed formalism, we address the impact of feedback via pilot-bunch-based comagnetometry oncontinuous spin flips and on the related interpretation of charged-particle electric dipole moment searches using storage rings. We propose a spin-flip-based tomography of the longitudinal profile of polarization in a bunch, which is important for the evaluation of the polarization-dependent luminosity in collider experiments. We emphasize the potential importance of the previously unexplored phase of the horizontal polarization of the envelope as an indicator of the stability of radio-frequency-driven spin rotations in storage rings and as a testing ground for spin decoherence mechanisms.

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Contributing Institute(s):

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

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)
2. srEDM - Search for electric dipole moments using storage rings (694340) (694340)

Experiment(s):

1. Jülich Electric Dipole moment Investigations

Appears in the scientific report 2024

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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