Measurement of the neutron electric dipole moment via spin rotation in a non-centrosymmetric crystal

We have measured the neutron electric dipole moment using spin rotation in a non-centrosymmetric crystal. Our result is dn=(2.5±6.5stat±5.5syst)⋅10−24ecm. The dominating contribution to the systematic uncertainty is statistical in nature and will reduce with improved statistics. The statistical sens...

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Bibliographic Details
Published in:Physics letters. B 2010-10, Vol.694 (1), p.22-25
Main Authors: Fedorov, V.V., Jentschel, M., Kuznetsov, I.A., Lapin, E.G., Lelièvre-Berna, E., Nesvizhevsky, V., Petoukhov, A., Semenikhin, S.Yu, Soldner, T., Voronin, V.V., Braginetz, Yu.P.
Format: Article
Language:English
Subjects:
CP violation
Crystals
Diffraction
Electric dipole moment
Electric dipoles
Elementary particles
Neutron
Particle spin
Perfect crystal
Statistics
Three-dimensional polarisation analysis
Uncertainty
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Summary:We have measured the neutron electric dipole moment using spin rotation in a non-centrosymmetric crystal. Our result is dn=(2.5±6.5stat±5.5syst)⋅10−24ecm. The dominating contribution to the systematic uncertainty is statistical in nature and will reduce with improved statistics. The statistical sensitivity can be increased to 2⋅10−26ecm in 100 days data taking with an improved setup. We state technical requirements for a systematic uncertainty at the same level.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2010.09.033