This title appears in the Scientific Report :
2017
Please use the identifier:
http://dx.doi.org/10.1134/S0021364017160044 in citations.
Non-exponential decoherence of radio-frequency resonance rotation of spin in storage rings
Non-exponential decoherence of radio-frequency resonance rotation of spin in storage rings
Precision experiments, such as the search for electric dipole moments of charged particles using radio-frequency spin rotators in storage rings, demand for maintaining the exact spin resonance condition for several thousand seconds. Synchrotron oscillations in the stored beam modulate the spin tune...
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Personal Name(s): | Saleev, A. (Corresponding author) |
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Nikolaev, N. N. (Corresponding author) / Rathmann, F. / Hinder, F. / Pretz, J. / Rosenthal, M. | |
Contributing Institute: |
Kernphysikalische Großgeräte; IKP-4 Experimentelle Hadrondynamik; IKP-2 |
Published in: | JETP letters, 106 (2017) 4, S. 213 - 216 |
Imprint: |
Heidelberg [u.a.]
Springer
2017
|
DOI: |
10.1134/S0021364017160044 |
Document Type: |
Journal Article |
Research Program: |
Search for electric dipole moments using storage rings Accelerator R & D Cosmic Matter in the Laboratory |
Publikationsportal JuSER |
Precision experiments, such as the search for electric dipole moments of charged particles using radio-frequency spin rotators in storage rings, demand for maintaining the exact spin resonance condition for several thousand seconds. Synchrotron oscillations in the stored beam modulate the spin tune of off-central particles, moving it off the perfect resonance condition set for central particles on the reference orbit. Here, we report an analytic description of how synchrotron oscillations lead to non-exponential decoherence of the radio-frequency resonance driven up–down spin rotations. This non-exponential decoherence is shown to be accompanied by a nontrivial walk of the spin phase. We also comment on sensitivity of the decoherence rate to the harmonics of the radio-frequency spin rotator and a possibility to check predictions of decoherence-free magic energies. |