Equation for spin decoherence rate in an all-electric ring

2014/03/28 by S. R. Mane, Mane, S. R.
Engineering · Physics and Astronomy · #Accelerator Physics (physics.acc-ph) #Atomic and Subatomic Physics Research #FOS: Physical sciences #Particle Accelerators and Free-Electron Lasers #Particle accelerators and beam dynamics

paper · pdf · doi:10.48550/arxiv.1403.7485

openalex publication_date 2014/03/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

There is a quantitative error in the derivation for the spin decoherence rate by Talman in IPAC2012. The crucial point is a subtle confusion between the concept of `longitudinal' as in `along the reference orbit' and `parallel to the particle velocity.' They are \it not the same direction, and the distinction is significant for high-precision experiments to search for a possible nonzero electric dipole moment (EDM) of a charged particle in a storage ring.

Related

• Orbit and spin tracking in a radial electric field
• Spin decoherence in electron storage rings --- more from a simple model
• Spin coherence time analytical estimations
• Frequency Domain Storage Ring Method for Electric Dipole Moment Measurement
• Systematic Errors in General Spin Precession in Storage Ring