# Electric Dipole Moment of the Neutron from 2+1 Flavor Lattice QCD.

@article{Guo2015ElectricDM, title={Electric Dipole Moment of the Neutron from 2+1 Flavor Lattice QCD.}, author={Feng-Kun Guo and R. Horsley and Ulf-G. Mei{\ss}ner and Y. Nakamura and Holger Perlt and Paul E. L. Rakow and G. Schierholz and Arwed Schiller and James Zanotti}, journal={Physical review letters}, year={2015}, volume={115 6}, pages={ 062001 } }

We compute the electric dipole moment d(n) of the neutron from a fully dynamical simulation of lattice QCD with 2+1 flavors of clover fermions and nonvanishing θ term. The latter is rotated into a pseudoscalar density in the fermionic action using the axial anomaly. To make the action real, the vacuum angle θ is taken to be purely imaginary. The physical value of dd(n) is obtained by analytic continuation. We find d(n)=-3.9(2)(9)×10(-16) θ e cm, which, when combined with the experimental limit…

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