1. CPEDM: A Storage Ring Facility for Charged-Particle EDM Searches.
- Author
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Christian, Carli, Paolo, Lenisa, Pretz, Jörg, Rathmann, Frank, and Hans, Ströher
- Subjects
STORAGE rings ,DISCRETE symmetries ,PARTICLE physics ,CP violation ,AXIONS ,STORAGE facilities - Abstract
An obvious observable to investigate is an EDM, because the SM-EDM values are unmeasurably small with current experimental techniques, finding an EDM would very probably also indicate new physics, not contained in the SM [[1]]. Permanent electric dipole moments (EDM) of particles violate both time reversal (T) and parity (P) invariance and, on the basis of the CPT (C represents charge conjugation) theorem, they also violate the combined symmetry CP (Charge-Parity Violation: CPV). Although a measurement in principle might be deemed very simple, the challenge (for any permanent or oscillating EDM search) lies in the fact that EDMs are very small - the neutron EDM upper limit is now at d < 1.8 x 10 SP -26 sp e.cm (90% CL) [[5]]. [Extracted from the article]
- Published
- 2021
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