Limits RegistryPUBLIC RECORD
Limits RegistryThe nEDM collaboration at the Paul Scherrer Institute's ultracold neutron source measured the neutron electric dipole moment with stored ultracold neutrons and a mercury co-magnetometer, reporting |d_n| < 1.8x10^-26 e·cm (90% C.L.) in Physical Review Letters in February 2020. The null result sharpens the 'strong CP problem' and constrains new sources of CP violation.
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The nEDM collaboration at the Paul Scherrer Institute's ultracold neutron source measured the neutron electric dipole moment with stored ultracold neutrons and a mercury co-magnetometer, reporting |d_n| < 1.8x10^-26 e·cm (90% C.L.) in Physical Review Letters in February 2020. The null result sharpens the 'strong CP problem' and constrains new sources of CP violation.
The smallest experimentally established upper bound on |d_n|, the neutron's permanent electric dipole moment.
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Current frontiers derived from accepted Claims.
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The frontier as it changed over time.
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1 accepted Claim, with 1 linked evidence records.
Permanent ID limitsregistry.com/limits/LR-NEUTRON-EDM-UPPER-BOUND
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Limits Registry. LR-NEUTRON-EDM-UPPER-BOUND. Tightest upper bound on the neutron's electric dipole moment. 2026.