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Theta-Induced Electric Dipole Moment of the Neutron via QCD Sum Rules
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Using the QCD sum rule approach, we calculate the electric dipole moment of the neutron induced by a vacuum theta--angle to approximately 40-50% precision, d_n = 2.4 x 10^{-16} \theta e.cm. Combined with the new experimental bound, this translates into the limit |\theta|< 3 x 10^{-10}.
Forward citations
Cited by 5 Pith papers
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The Neutron Electric Dipole Moment from Lattice QCD using a Background Electric Field
Using background electric fields, local topological charge, and non-Hermitian GEVP, lattice QCD yields dn = -0.0050(4)stat(8)sys θ-bar e fm at the physical point.
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A particle on a ring or: how I learned to stop worrying and love $\theta$-vacua
The ACGT order-of-limits prescription fails to reproduce the correct θ-dependent energy spectrum in the quantum rotor and quantum pendulum.
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The QCD Axion and Neutrino Masses
If the QCD axion and neutrino masses share a single symmetry-breaking scale, the axion necessarily couples to neutrinos and can decay into a monochromatic neutrino signal.
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The Polymorphic Chiral Anomaly
Derives a generic chiral anomaly formula incorporating multiple Feynman diagrams, from which abelian, singlet, consistent, and covariant forms follow, with topological discussion and FeynCalc code.
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The theory of electric dipole moments: the view from below
A bottom-up review organizing the theory of EDMs from quark-gluon CP violation via chiral perturbation theory and structure calculations, with emphasis on paramagnetic system sensitivity to hadronic sources.
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