Screening of Nucleon Electric Dipole Moments in Nuclei
Satoru Inoue, Vladimir Gudkov, Matthias R. Schindler, and Young-Ho, Song
TL;DR
This paper investigates how nucleon electric dipole moments are partially screened within nuclei, revealing a small 1% screening effect on the neutron EDM contribution to the deuteron EDM, using a zero-range approximation.
Contribution
It introduces a partial screening effect of nucleon EDMs in nuclei, extending the Schiff mechanism concept to nuclear systems with quantitative estimates.
Findings
Neutron EDM contribution to deuteron EDM is partially screened by about 1%.
Screening effect is analyzed within a zero-range approximation.
The study links nuclear EDM screening to the Schiff mechanism known in atomic physics.
Abstract
A partial screening of nucleon electric dipole moments (EDMs) in nuclear systems, which is related to the Schiff mechanism known for neutral atomic systems, is discussed. It is shown that the direct contribution from the neutron EDM to the deuteron EDM is partially screened by about 1% in a zero-range approximation calculation.
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