PNPI differential EDM spectrometer and latest results of measurements of the neutron electric dipole moment

In this work, the double chamber magnetic resonance spectrometer of the Petersburg Nuclear Physics Institute (PNPI) designed to measure the neutron electric dipole moment (EDM) is briefly described. A method for long storage of polarized ultracold neutrons in a resonance space with a superposed elec...

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Veröffentlicht in:	Physics of atomic nuclei 2015-12, Vol.78 (14), p.1601-1605
Hauptverfasser:	Serebrov, A. P., Kolomenskiy, E. A., Pirozhkov, A. N., Krasnoshchekova, I. A., Vasiliev, A. V., Polyushkin, A. O., Lasakov, M. S., Murashkin, A. N., Solovey, V. A., Fomin, A. K., Shoka, I. V., Zherebtsov, O. M., Alexandrov, E. B., Dmitriev, S. P., Dovator, N. A., Geltenbort, P., Ivanov, S. N., Zimmer, O.
Format:	Artikel
Sprache:	eng
Schlagworte:	CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS DESIGN ELECTRIC DIPOLE MOMENTS ELECTRIC FIELDS ELECTRON ANTINEUTRINOS INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY MAGNETIC FIELDS MAGNETIC SPECTROMETERS Measurement Neutrinos NEUTRON BEAMS Nuclear physics Particle and Nuclear Physics Physics Physics and Astronomy POLARIZED BEAMS ULTRACOLD NEUTRONS
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Zusammenfassung:	In this work, the double chamber magnetic resonance spectrometer of the Petersburg Nuclear Physics Institute (PNPI) designed to measure the neutron electric dipole moment (EDM) is briefly described. A method for long storage of polarized ultracold neutrons in a resonance space with a superposed electric field collinear to the leading magnetic field is used. The results of the measurements carried out on the ILL reactor (Grenoble, France) are interpreted as the upper limit of the value of neutron EDM \|d n \| < 5.5 × 10 –26 e cm at the 90% confidence level.
ISSN:	1063-7788 1562-692X
DOI:	10.1134/S1063778815130293