Improved experimental limit on the electric dipole moment of the neutron.
An experimental search for an electric dipole moment (EDM) of the neutron has been carried out at the Institut Laue-Langevin, Grenoble. Spurious signals from magnetic-field fluctuations were reduced to insignificance by the use of a cohabiting atomic-mercury magnetometer. Systematic uncertainties, including geometric-phase-induced false EDMs, have been carefully studied. The results may be interpreted as an upper limit on the neutron EDM of |d(n)|< 2.9 x 10(-26)e cm (90% C.L.).
Baker
C A
CA
Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom.
Doyle
D D
DD
Geltenbort
P
P
Green
K
K
van der Grinten
M G D
MG
Harris
P G
PG
Iaydjiev
P
P
Ivanov
S N
SN
May
D J R
DJ
Pendlebury
J M
JM
Richardson
J D
JD
Shiers
D
D
Smith
K F
KF