May 29, 2018 to June 3, 2018
Hyatt Regency Indian Wells Conference Center
US/Pacific timezone

Status of the Storage Ring Proton EDM Experiment

May 29, 2018, 5:10 PM
North Foyer | Kachina Room (Hyatt Regency Indian Wells Conference Center)

North Foyer | Kachina Room

Hyatt Regency Indian Wells Conference Center

44600 Indian Wells Lane, Indian Wells, CA 92210, USA


Selcuk Haciomeroglu (Institute for Basic Science, Korea)


Charged particle EDM experiments can be done with high sensitivity using storage rings. Radial electric fields bend a longitudinally polarized beam for storage while at the same time couple with the particle EDM. Having the so-called magic momentum, the spin precession in the horizontal plane can be frozen. Still, the spin can make a precession in the vertical plane with a rate proportional to the magnitude of the EDM ($d_p$). We have a preliminary ring design to make the proton EDM experiment with a sensitivity of $d_p=10^{-29}\ e\cdot$cm. The EDM signal corresponds to a few nrad/s of spin precession rate in the vertical plane. There are several spin and electromagnetic field configurations that can lead to a false EDM signal of the same order, like a net radial magnetic field and/or vertical electric field depending on the details of the ring lattice. This talk summarizes the ring design with a focus on the systematic errors.
E-mail [email protected]

Primary author

Selcuk Haciomeroglu (Institute for Basic Science, Korea)


Yannis K. Semertzidis (Institute for Basic Science)

Presentation materials