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arxiv: 1303.6612 · v2 · pith:GBNOTFSJnew · submitted 2013-03-26 · ✦ hep-ex

Constraints on Spin-Dependent Short-Range Interaction between Nucleons

Kathlynne Tullney , Fabian Allmendinger , Martin Burghoff , Werner Heil , Sergej Karpuk , Wolfgang Kilian , Silvia Knappe-Gr\"uneberg , Wolfgang M\"uller
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Ulrich Schmidt Allard Schnabel Frank Seifert Yuri Sobolev Lutz Trahms
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classification ✦ hep-ex
keywords interactionnucleonsprecessionspin-dependentapproachaxionbosonsco-located
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We report on the search for a new spin-dependent P- and T-violating interaction between nucleons mediated by light, pseudoscalar bosons such as the axion which was invented to solve the strong CP problem. Our experimental approach is to use an ultra-sensitive low-field magnetometer based on the detection of free precession of co-located 3He and 129Xe nuclear spins using SQUIDs as low-noise magnetic flux detectors. In the presence of an unpolarized mass the precession frequency shif

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