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
@article{arxiv.1303.6612,
title = {Constraints on Spin-Dependent Short-Range Interaction between Nucleons},
author = {Kathlynne Tullney and Fabian Allmendinger and Martin Burghoff and Werner Heil and Sergej Karpuk and Wolfgang Kilian and Silvia Knappe-Grüneberg and Wolfgang Müller and Ulrich Schmidt and Allard Schnabel and Frank Seifert and Yuri Sobolev and Lutz Trahms},
journal= {arXiv preprint arXiv:1303.6612},
year = {2015}
}