Observation of Saw-Tooth effect orbit at VEPP-4M collider

E. Bekhtenev, G. Karpov, D. Leshenok, S. Nikitin, O. Plotnikova

Результат исследования: Научные публикации в периодических изданияхстатья по материалам конференции


We study the relative position of the electron and positron closed orbits in the VEPP-4M single storage ring collider in experiments on orbit precision monitoring. A difference in the orbits can affect the accuracy of several fundamental experiments, e.g. precise comparison of the electron and positron spin frequencies (the CPT invariance test). In this case, the spin precession frequencies of particles should be compared within at least 5•10-9. The distinction of frequencies depends on the features of the radial orbits. Ideally, the difference in the electron and positron orbits is set only by distributed radiation losses of particle energy. The corresponding contribution to the total orbit distortions is called the Saw-Tooth effect orbit. Another example of possible precision experiment at VEPP-4M is search for the light speed anisotropy (LSA). In this case, it is necessary to ensure a stability of the difference in the radial orbits of electrons and positrons at a level of 1 μm.

Язык оригиналаанглийский
Номер статьи072021
Число страниц5
ЖурналJournal of Physics: Conference Series
Номер выпуска7
СостояниеОпубликовано - 5 окт 2018
Событие9th International Particle Accelerator Conference, IPAC 2018 - Vancouver, Канада
Продолжительность: 29 апр 20184 мая 2018

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    Bekhtenev, E., Karpov, G., Leshenok, D., Nikitin, S., & Plotnikova, O. (2018). Observation of Saw-Tooth effect orbit at VEPP-4M collider. Journal of Physics: Conference Series, 1067(7), [072021]. https://doi.org/10.1088/1742-6596/1067/7/072021