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The JEDI (Jülich Electric Dipole moment Investigations) collaboration performs a set of experiments at the COSY storage ring in Jülich, to search for the Electric Dipole Moments (EDMs) of charged particles (JEDI Collaboration [2011]). A measurement of proton and deuteron EDMs is a sensitive probe of yet unknown CP violation. The method of charged particle EDM search will exploit stored polarized beams...
Automatic compensation system for the environmental magnetic field has been developed for the neutron electric dipole moment (n-EDM) measurement using ultra-cold neutrons (UCN). In the test experiment, a magnetic field of ~ 40 μT including geomagnetism with the field gradient of ~ − 9 μT/m was successfully suppressed. The suppression factors were consistent with the feed-back gains. Our goal is to...
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