Title: An improved measurement of the electric dipole moment of the neutron
Authors: Altarev, I ×
Ban, G
Bison, G
Bodek, K
Burghoff, M
Chowdhuri, Z
Daum, M
Duesing, C
Fertl, M
Fierlinger, P
Franke, B
Grab, C
Gutsmiedl, E
Hampel, G
Heil, W
Henneck, R
Horras, M
Khomutov, N
Kirch, K
Kistryn, S
Knappe-Grueneberg, S
Knecht, A
Knowles, P
Kozela, A
Kraft, A
Kuchler, F
Kratz, J. V
Lauer, T
Lauss, B
Lefort, T
Lemiere, Y
Mtchedlishvili, A
Naviliat-Cuncic, O
Quemener, G
Pazgalev, A. S
Petzoldt, G
Plonka-Spehr, C
Pierre, E
Pignol, G
Rebreyend, D
Roccia, Stephanie
Rogel, G
Schmidt-Wellenburg, P
Schnabel, A
Severijns, Natalis
Sobolev, Yu
Stoepler, R
Weis, A
Wiehl, N
Zejma, J
Zenner, J
Zsigmond, G #
Issue Date: Nov-2010
Publisher: North Holland Pub. Co.
Series Title: Nuclear Physics A vol:844 pages:47C-52C
Abstract: We describe the status of the new measurement of the neutron electric dipole moment (nEDM) to be performed at the strong source of ultra-cold neutrons at the Paul Scherrer Institut. The experimental technique is based on Ramsey's method of separated oscillatory fields, applied to UCN stored in vacuum in a chamber at room temperature. Our approach is performed in three phases: in phase one, new components have been developed and tested at the Institut Laue-Langevin. Phase two is being performed at PSI, where the apparatus was moved in 2009. Here, together with the optimization of the magnetic environment, the prospective UCN density of similar to 100 cm(-3) should enable an improvement of the currently best limit by a factor of five within two years of data taking. In the third phase, a new spectrometer will then gain another order of magnitude in sensitivity The improvements will be mainly due to (1) much higher UCN intensity, (2) improved magnetometry and magnetic field control, and (3) a double chamber configuration with opposite electric field directions.
ISSN: 0375-9474
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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