Search for electric dipole moments of light ions in storage rings

Journal Article · Wed Jan 15 04:00:00 EST 2014 · Physics of Particles and Nuclei

DOI:https://doi.org/10.1134/S1063779614010869· OSTI ID:22977356

Rathmann, F. ^[1]; Saleev, A.; Nikolaev, N. N. ^[2]

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1. Institut für Kernphysik, Forschungszentrum Jülich, Jülich (Germany)
2. Landau Institute for Theoretical Physics, Chernogolovka, Moscow oblast (Russian Federation)

The Standard Model (SM) of Particle Physics is not capable to account for the apparent matterantimatter asymmetry of our Universe. Physics beyond the SM is required and is searched for by (i) employing highest energies (e.g., at LHC), and (ii) striving for ultimate precision and sensitivity (e.g., in the search for electric dipole moments (EDMs)). Permanent EDMs of particles violate both time reversal (T) and parity (P) invariance, and are via the CPT-theorem also CP-violating. Finding an EDM would be a strong indication for physics beyond the SM, and pushing upper limits further provides crucial tests for any corresponding theoretical model, e.g., SUSY. Direct searches of proton and deuteron EDMs bear the potential to reach sensitivities beyond 10{sup −29} e cm. For an all-electric proton storage ring, this goal is pursued by the US-based srEDM collaboration [2], while the newly found Julich-based JEDI collaboration [1] is pursuing an approach using a combined electric-magnetic lattice which shall provide access to the EDMs of protons, deuterons, and {sup 3}He ions in the same machine. In addition, JEDI has recently proposed to perform a direct measurement of the proton and/or deuteron EDM at COSY using resonant techniques involving Wien filters.

• OSTI ID: 22977356
• Journal Information: Physics of Particles and Nuclei, Journal Name: Physics of Particles and Nuclei Journal Issue: 1 Vol. 45; ISSN 1063-7796
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CERN LHC
CMS DETECTOR
COSY STORAGE RING
CP INVARIANCE
CPT THEOREM
DEUTERONS
ELECTRIC DIPOLE MOMENTS
HELIUM 3
P INVARIANCE
PROTONS
STANDARD MODEL