Towards a new measurement of the neutron electric dipole moment
- Altarev, I
- Ban, G
- Bison, G
- Bodek, K
- Burghoff, M
- Cvijovic, M
- Daum, M
- Fierlinger, P
- Gutsmiedl, E
- Hampel, G
- Heil, W
- Henneck, R
- Horras, M
- Khomutov, N
- Kirch, K
- Kistryn, St
- Knappe-Gruneberg, S
- Knecht, A
- Knowles, P
- Kozela, A
- Krtaz, JV
- Kuchler, F
- Kuzniak, M
- Lauer, T
- Lauss, B
- Lefort, T
- Mtchedlishvili, A
- Naviliat-Cuncic, O
- Paul, S
- Pazgalev, AS
- Petzoldt, G
- Pierre, E
- Plonka-Spehr, C
- Quemener, G
- Rebreyend, D
- Roccia, S
- Rogel, G
- Sander-Thoemmes, T
- Schnabel, A
- Severijns, Natalis
- Sobolev, Yu
- Stoepler, R
- Trahms, L
- Weis, A
- Wiehl, N
- Zejma, J
- Zsigmond, G
DOIAbstract
The effort towards a new measurement of the neutron electric dipole moment (nEDM) at the Paul Scherrer Institute’s (PSI) new high intensity source of ultracold neutrons (UCN) is described. The experimental technique relies on Ramsey’s method of separated oscillatory fields, using UCN in vacuum with the apparatus at ambient temperature. In the first phase, R&D towards the upgrade of the RAL/ Sussex/ILL apparatus is being performed at the Institut Laue-Langevin (ILL). In the second phase the apparatus, moved from ILL to PSI, will allow an improvement in experimental sensitivity by a factor of 5. In the third phase, a new spectrometer should gain an other order of magnitude in sensitivity. The improvements will be mainly due to (1) muc...
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