Details

Autor(en) / Beteiligte

• Harris, P. G.
• Pendlebury, J. M.
• Devenish, N. E.

Titel

Gravitationally enhanced depolarization of ultracold neutrons in magnetic-field gradients

Ist Teil von

• Physical review. D, Particles, fields, gravitation, and cosmology, 2014-01, Vol.89 (1), Article 016011

Erscheinungsjahr

2014

Quelle

PROLA

Beschreibungen/Notizen

• Trapped ultracold neutrons (UCNs) have for many years been the mainstay of experiments to search for the electric dipole moment (EDM) of the neutron, a critical parameter in constraining scenarios of new physics beyond the Standard Model. Because their energies are so low, UCNs preferentially populate the lower region of their physical enclosure and do not sample uniformly the ambient magnetic field throughout the storage volume. This leads to a substantial increase in the rate of depolarization, as well as to shifts in the measured frequency of the stored neutrons. Consequences for EDM measurements are discussed.