The direct constraint on the parameters of short range pseudomagnetic interaction of free neutron with matter is obtained from the recent test experiment on a search for neutron EDM by crystal-diffraction method. It is shown that this constraint on a product of scalar to pseudo-scalar coupling constants gsgp is better than that of any other method for the range λ<10−5cm.
@article{arxiv.0811.0670,
title = {Neutron diffraction constraint on spin-dependent short range interaction},
author = {V. V. Voronin and V. V. Fedorov and I. A. Kuznetsov},
journal= {arXiv preprint arXiv:0811.0670},
year = {2015}
}