Improved experimental limit on the electric dipole moment of the neutron

被引:1045
作者
Baker, C. A. [1 ]
Doyle, D. D.
Geltenbort, P.
Green, K.
van der Grinten, M. G. D.
Harris, P. G.
Iaydjiev, P.
Ivanov, S. N.
May, D. J. R.
Pendlebury, J. M.
Richardson, J. D.
Shiers, D.
Smith, K. F.
机构
[1] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England
[2] Univ Sussex, Dept Phys & Astron, Brighton BN1 9QH, E Sussex, England
[3] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France
关键词
D O I
10.1103/PhysRevLett.97.131801
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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 vertical bar d(n)vertical bar < 2.9x10(-26)e cm (90% C.L.).
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页数:4
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