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Mainz 2017 – wissenschaftliches Programm

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SYAM: Symposium Atomic Anti-Matter Physics

SYAM 2: Atomic Anti-Matter Physics II

SYAM 2.5: Vortrag

Donnerstag, 9. März 2017, 16:15–16:30, P 1

Permanent Electric Dipole Moment Search in 129Xe — •Olivier Grasdijk1, Fabian Allmendinger2, Peter Blümler3, Werner Heil3, Klaus Jungmann1, Sergei Karpuk3, Hans-Joachim Krause4, Andreas Offenhäusser4, Maricel Repetto3, Ulrich Schmidt2, Yury Sobolev3, Lorenz Willmann1, and Stefan Zimmer31VSI, University of Groningen — 2Universität Mainz — 3Universität Heidelberg — 4Forschungszentrum Jülich

A permanent electric dipole moment (EDM) implies breakdown of P (parity) and T (time reversal) symmetries. Provided CPT holds, this implies CP violation. Observation of an EDM at achievable experimental sensitivity would provide unambiguous evidence for physics beyond the Standard Model and limits towards matter-antimatter asymmetry. Our experiment uses differential spin precession of 3He and 129Xe, co-occupying the same volume, to measure the EDM of xenon. We have reached in a first test already sensitivity in the range 10-28 ecm. I will present the current status of the experiment and challenges like long term (weeks) tight control over magnetic and electric fields.

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