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A new measurement of the permanent electric dipole moment of $^{129}$Xe using $^{3}$He comagnetometry and SQUID detection

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arxiv 1902.02864 v1 pith:2K6GSQ6B submitted 2019-02-07 physics.atom-ph physics.ins-det

N. Sachdeva , I. Fan , E. Babcock , M. Burghoff , T. E. Chupp , S. Degenkolb , P. Fierlinger , E. Kraegeloh
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W. Kilian S. Knappe-Grüneberg F. Kuchler T. Liu M. Marino J. Meinel Z. Salhi A. Schnabel J. T. Singh S. Stuiber W. A. Terrano L. Trahms J. Voigt
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classification physics.atom-phphysics.ins-det
keywords mathrmcomagnetometryelectriclimitmeasurementsquidappliedcell
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abstract

We describe a new technique to measure the EDM of $^{129}$Xe with $^3$He comagnetometry. Both species are polarized using spin-exchange optical pumping, transferred to a measurement cell, and transported into a magnetically shielded room, where SQUID magnetometers detect free precession in applied electric and magnetic fields. The result of a one week run combined with a detailed study of systematic effects is $d_A(^{129}\mathrm{Xe}) = (0.26 \pm 2.33_\mathrm{stat} \pm 0.72_\mathrm{syst})\times10^{-27}~e\,\mathrm{cm}$. This corresponds to an upper limit of $|d_A(^{129}\mathrm{Xe})| < 4.81\times 10^{-27} ~e\,\mathrm{cm}~(95\%~\mathrm{CL})$, a factor of 1.4 more sensitive than the previous limit.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Effects of beyond-mean-field correlations on nuclear Schiff moments

    nucl-th 2025-07 conditional novelty 7.0 of 10

    Beyond-mean-field shape mixing suppresses the octupole-enhanced Schiff moment in 225Ra and alters the Schiff moments of 129Xe and 199Hg, with intermediate-state contributions correlating with E1 transition strengths.

  2. Relativistic many body theory of the electric dipole moment of $^{129}$Xe and its implications for probing new physics beyond the Standard Model

    physics.atom-ph 2019-08 conditional novelty 5.0 of 10

    The authors use two relativistic coupled-cluster methods to compute xenon-129's EDM sensitivity to nuclear Schiff moments and electron-nucleus tensor-pseudotensor interactions, with claimed uncertainties below 1%.

  3. Analysis of Electric Dipole Moment of $^{225}$Ra Atom using the Relativistic Normal Coupled-cluster Theory

    physics.atom-ph 2019-08 conditional novelty 5.0 of 10

    The recommended 225Ra electric dipole moment enhancement factors are -6.29(1) x 10^-17 |e| cm/(|e| fm^3) for the Schiff moment and -12.66(14) x 10^-20 <sigma_N> |e| cm for the T-PT interaction, with alpha_d = 244(13) ea0^3.

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