This title appears in the Scientific Report :
2019
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevA.100.022505 in citations.
Please use the identifier: http://hdl.handle.net/2128/22689 in citations.
Measurement of the permanent electric dipole moment of the Xe 129 atom
Measurement of the permanent electric dipole moment of the Xe 129 atom
We report on a measurement of theCP-violating permanent electric dipole moment (EDM) of the neutral 129-Xe atom. Our experimental approach is based on the detection of the free precession of co-located nuclear spinpolarized 3He and 129Xe samples. The EDM measurement sensitivity benefits strongly fro...
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Personal Name(s): | Allmendinger, F. (Corresponding author) |
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Engin, I. / Heil, W. / Karpuk, S. / Krause, H.-J. / Niederländer, B. / Offenhäusser, A. / Repetto, M. / Schmidt, U. / Zimmer, S. | |
Contributing Institute: |
Elektronische Eigenschaften; PGI-6 Bioelektronik; ICS-8 |
Published in: | Physical Review A Physical review / A, 100 100 (2019 2019) 2 2, S. 022505 022505 |
Imprint: |
Woodbury, NY
Inst.
2019
2019-08-07 2019-08-01 |
DOI: |
10.1103/PhysRevA.100.022505 |
Document Type: |
Journal Article |
Research Program: |
Controlling Configuration-Based Phenomena |
Link: |
OpenAccess Restricted OpenAccess Restricted |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/22689 in citations.
We report on a measurement of theCP-violating permanent electric dipole moment (EDM) of the neutral 129-Xe atom. Our experimental approach is based on the detection of the free precession of co-located nuclear spinpolarized 3He and 129Xe samples. The EDM measurement sensitivity benefits strongly from long spin coherence times of several hours achieved in diluted gases and homogeneous weak magnetic fields of about 400 nT. A finite EDM is indicated by a change in the precession frequency, as an electric field is periodically reversed with respect to the magnetic guiding field. Our result (−4.7 ± 6.4) × 10−28e cm, is consistent with zero and is used to place a new upper limit on the 129-Xe EDM: |dXe| < 1.5 × 10−27e cm (95% C.L.). We also discuss the implications of this result for various CP-violating observables as they relate to theories of physics beyond the standard model. |