First measurement of the atomic electric dipole moment of Ra 225

R. H. Parker; M. R. Dietrich; M. R. Kalita; N. D. Lemke; K. G. Bailey; M. Bishof; J. P. Greene; R. J. Holt; W. Korsch; Z. T. Lu; P. Mueller; T. P. O'Connor; J. T. Singh

doi:10.1103/PhysRevLett.114.233002

First measurement of the atomic electric dipole moment of Ra 225

R. H. Parker, M. R. Dietrich, M. R. Kalita, N. D. Lemke, K. G. Bailey, M. Bishof, J. P. Greene, R. J. Holt, W. Korsch, Z. T. Lu, P. Mueller, T. P. O'Connor, J. T. Singh

Physics And Astronomy

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Abstract

The radioactive radium-225 (Ra225) atom is a favorable case to search for a permanent electric dipole moment. Because of its strong nuclear octupole deformation and large atomic mass, Ra225 is particularly sensitive to interactions in the nuclear medium that violate both time-reversal symmetry and parity. We have developed a cold-atom technique to study the spin precession of Ra225 atoms held in an optical dipole trap, and demonstrated the principle of this method by completing the first measurement of its atomic electric dipole moment, reaching an upper limit of |d(Ra225)|<5.0×10-22ecm (95% confidence).

Original language	English
Article number	233002
Journal	Physical Review Letters
Volume	114
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.114.233002
State	Published - Jun 9 2015

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© 2015 American Physical Society.

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General Physics and Astronomy

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abstract = "The radioactive radium-225 (Ra225) atom is a favorable case to search for a permanent electric dipole moment. Because of its strong nuclear octupole deformation and large atomic mass, Ra225 is particularly sensitive to interactions in the nuclear medium that violate both time-reversal symmetry and parity. We have developed a cold-atom technique to study the spin precession of Ra225 atoms held in an optical dipole trap, and demonstrated the principle of this method by completing the first measurement of its atomic electric dipole moment, reaching an upper limit of |d(Ra225)|<5.0×10-22ecm (95% confidence).",

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AU - Parker, R. H.

AU - Dietrich, M. R.

AU - Kalita, M. R.

AU - Lemke, N. D.

AU - Bailey, K. G.

AU - Bishof, M.

AU - Greene, J. P.

AU - Holt, R. J.

AU - Korsch, W.

AU - Lu, Z. T.

AU - Mueller, P.

AU - O'Connor, T. P.

AU - Singh, J. T.

PY - 2015/6/9

Y1 - 2015/6/9

N2 - The radioactive radium-225 (Ra225) atom is a favorable case to search for a permanent electric dipole moment. Because of its strong nuclear octupole deformation and large atomic mass, Ra225 is particularly sensitive to interactions in the nuclear medium that violate both time-reversal symmetry and parity. We have developed a cold-atom technique to study the spin precession of Ra225 atoms held in an optical dipole trap, and demonstrated the principle of this method by completing the first measurement of its atomic electric dipole moment, reaching an upper limit of |d(Ra225)|<5.0×10-22ecm (95% confidence).

AB - The radioactive radium-225 (Ra225) atom is a favorable case to search for a permanent electric dipole moment. Because of its strong nuclear octupole deformation and large atomic mass, Ra225 is particularly sensitive to interactions in the nuclear medium that violate both time-reversal symmetry and parity. We have developed a cold-atom technique to study the spin precession of Ra225 atoms held in an optical dipole trap, and demonstrated the principle of this method by completing the first measurement of its atomic electric dipole moment, reaching an upper limit of |d(Ra225)|<5.0×10-22ecm (95% confidence).

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First measurement of the atomic electric dipole moment of Ra 225

Abstract

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