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${{\mathit e}}$ ELECTRIC DIPOLE MOMENT (d)

A nonzero value is forbidden by both $\mathit T$ invariance and $\mathit P$ invariance.

VALUE ($ 10^{-28} $ $\mathit e~$cm)

CL%

DOCUMENT ID

TECN

COMMENT

$\bf{<0.11}$

90

CNTR

${}^{}\mathrm {ThO}$ molecules

• • We do not use the following data for averages, fits, limits, etc. • •

$<1.3$

90

ESR

${}^{180}\mathrm {Hf}{}^{19}\mathrm {F}$ molecules

$-5570$ $\pm7980$ $\pm120$

CNTR

Gd$_{3}$Ga$_{5}O_{12}$ molecules

$<0.87$

90

CNTR

${}^{}\mathrm {ThO}$ molecules

$<6050$

90

CNTR

Eu$_{0.5}$Ba$_{0.5}$TiO$_{3}$ molecules

$<10.5$

90

NMR

${}^{}\mathrm {YbF}$ molecules

$6.9$ $\pm7.4$

MRS

${}^{205}\mathrm {Tl}$ beams

$18$ $\pm12$ $\pm10$

MRS

${}^{205}\mathrm {Tl}$ beams

$-27$ $\pm83$

MRS

${}^{205}\mathrm {Tl}$ beams

$-1400$ $\pm2400$

NMR

${}^{}\mathrm {TlF}$ molecules

$-150$ $\pm550$ $\pm150$

${}^{}\mathrm {Cs}$, no $\mathit B$ field

$-5000$ $\pm11000$

NMR

${}^{199}\mathrm {Hg}$

($190$ $\pm340$) $ \times 10^{2}$

90

MRS

Thallium

$7000$ $\pm22000$

90

MRS

Xenon

$\text{<30000}$

90

MRS

Cesium

¹	ANDREEV 2018 gives a measurement corresponding to this limit as ($4.3$ $\pm3.1$ $\pm2.6$) $ \times 10^{-30}{{\mathit e}}$cm.

²	CAIRNCROSS 2017 gives a measurement corresponding to this limit as ($0.09$ $\pm0.77$ $\pm0.17$) $ \times 10^{-28}{{\mathit e}}$cm.

³	BARON 2014 gives a measurement corresponding to this limit as ($-0.21$ $\pm0.37$ $\pm0.25$) $ \times 10^{-28}{{\mathit e}}$cm.

⁴	ECKEL 2012 gives a measurement corresponding to this limit as ($-1.07$ $\pm3.06$ $\pm1.74$) $ \times 10^{-25}{{\mathit e}}$cm.

⁵	HUDSON 2011 gives a measurement corresponding to this limit as ($-2.4$ $\pm5.7$ $\pm1.5$) $ \times 10^{-28}{{\mathit e}}$cm.

⁶	ABDULLAH 1990 , COMMINS 1994 , and REGAN 2002 use the relativistic enhancement of a valence electron's electric dipole moment in a high-Z atom.

Conservation Laws:

TIME REVERSAL ($\mathit T$) INVARIANCE

PARITY ($\mathit P$) INVARIANCE

References:

NAT 562 355

Improved limit on the electric dipole moment of the electron

PRL 119 153001

Precision Measurement of the Electron�s Electric Dipole Moment using Trapped Molecular Ions

PR D91 102004

New Experimental Limit on the Electric Dipole Moment of the Electron in a Paramagnetic Insulator

SCI 343 269

Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron

PRL 109 193003

Limit on the Electron Electric Dipole Moment using Paramagnetic Ferroelectric Eu$_{0.5}$Ba$_{0.5}$Ti$_{O3}$

NAT 473 493

Improved Measurement of the Shape of the Electron

PRL 88 071805

New Limit on the Electron Electric Dipole Moment

PR A50 2960

Improved Experimental Limit on the Electric Dipole Moment of the Electron

PRL 65 2347

New Experimental Limit on the Electron Electric Dipole Moment

PRL 63 2559

Tenfold Improvement of Limits on $\mathit T$ Violation in Thallium Fluoride

PRL 63 965

New Limits on the Electron Electric Dipole Moment from Cesium

PRL 59 2275

New Constraints on Time Reversal Asymmetry from a Search for a Permanent Electric Dipole Moment of ${}^{199}\mathrm {Hg}$

PR A11 473

Electric Dipole Moment Enhancement Factor for Thallium Atom, and a New Upper Limit on the Electric Dipole Moment of the Electron

JP B3 1620

An Experiment to Search for an Electric Dipole Moment in the ${}^{3}P_{2}$ Metastable State of Xenon

PRL 21 1645

Electric Dipole Moment of the Cesium Atom. A New Upper Limit to the Electric Dipole Moment of the Electron

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