Journal
PHYSICAL REVIEW LETTERS
Volume 115, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.115.062001
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Funding
- DFG [422/9-1]
- Australian Research Council [FT100100005, DP140103067]
- NSFC through the Sino-German [CRC 110]
- NSFC [11165005]
- STFC [ST/H008845/1, ST/K502145/1, ST/L000458/1, ST/K000411/1, ST/I505805/1, ST/L000431/1, ST/M503629/1, ST/G00062X/1, ST/J50113X/1, ST/I506896/1, ST/M006530/1, ST/J000329/1, ST/G000522/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/K000411/1, ST/J000329/1, ST/I505805/1, ST/M006530/1, ST/L000458/1, ST/G00062X/1, ST/L000431/1, ST/H008845/1, ST/M503629/1, ST/I506896/1, ST/J50113X/1, ST/G000522/1, ST/K502145/1] Funding Source: researchfish
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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 theta 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 theta is taken to be purely imaginary. The physical value of d(n) is obtained by analytic continuation. We find d(n) = - 3.9(2)(9) x 10-(16) theta e cm, which, when combined with the experimental limit on d(n), leads to the upper bound vertical bar theta vertical bar less than or similar to 7.4 x 10(-11).
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