Improved experimental limit on the electric dipole moment of the neutron.

By C. A. Baker, D. D. Doyle, P. Geltenbort, K. Green, M. G. D. Grinten, P. Harris, P. Iaydjiev, S. Ivanov, D. May, J. Pendlebury and 3 more. Physical Review Letters, 2006

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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.).

Subfields: Atomic and Molecular Physics, and Optics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/34b994e5f077fe09d821b3d73b7b20c686a98d75

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Citations in the corpus

TASI Lectures on the Strong CP Problem and Axions (2018, background): “The current best measurement of the neutron eDM is [1, 2, 3]”
Axions as dark matter particles (2009, background): “consequence of QCD, or strong, CP violation. θresults in a neutron electric dipole moment of [21, 22, 23, 24], |d n| ∼ 10−16 θecm, (6) where eis the electric charge. The current experimental limit is [28] |d n| <6.3×10−26 ecm (7) and thus, |θ| . 10−9. There is no natural reason to expect θto be t”
Search for New Physics with Atoms and Molecules (2017, background): “Searches for nuclear SMts (and the bare neutron’s EDM (Baker et al., 2006; Pendlebury et al., 2015)) set a strong bound θ̄QCD ∼ 10−10, while naively one expects dimensionless fundamental parameters to have values of or-”
Measuring the electric dipole moment of the electron in BaF (2018, background): “ such as mercury [13], thallium [14], and xenon [15] were employed in dedicated searches for a permanent EDM and the accompanying CP violation, and the neutron also remained at the focus of attention [16]. For a historical overview of this eld of research we refer to Ref. [17]. The EDM of composite ”
An M theory solution to the strong CP-problem, and constraints on the axiverse (2010, background): “The dimensionless QCD -angle is a source of CP violation in the Standard Model, highly constrained by measurements of the electric dipole moment (EDM) of the neutron and 199 Hg: j qcdj . 10 10 [ 3 ].”
Baryogenesis in the Two-Higgs Doublet Model (2006, background): “The latest experimental limits for the neutron [39] and electron [40] EDMs at 90% confidence level are”