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Neutron EDM from Electric and Chromoelectric Dipole Moments of Quarks

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arxiv hep-ph/0010037 v2 pith:YZGDDVIC submitted 2000-10-05 hep-ph nucl-th

Maxim Pospelov , Adam Ritz This is my paper
classification hep-phnucl-th
keywords dipoleelectricmomentsquarktildechromoelectricinducedneutron
verification ladder T0 review T1 audit T2 compute T3 formal
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Using QCD sum rules, we calculate the electric dipole moment of the neutron d_n induced by all CP violating operators up to dimension five. We find that the chromoelectric dipole moments of quarks \tilde d_i, including that of the strange quark, provide significant contributions comparable in magnitude to those induced by the quark electric dipole moments d_i. When the theta term is removed via the Peccei-Quinn symmetry, the strange quark contribution is also suppressed and d_n =(1\pm 0.5)[1.1e(\tilde d_d + 0.5\tilde d_u)+1.4(d_d-0.25d_u)].

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 164 citations worldwide. Full citation record

  1. The Neutron Electric Dipole Moment from Lattice QCD using a Background Electric Field

    hep-lat 2026-07 conditional novelty 7.0 of 10

    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.

  2. A strange contribution to the neutron EDM

    hep-ph 2025-06 conditional novelty 7.0 of 10

    Analytic estimates from large-Nc QCD, the chiral quark model, and next-to-leading-order chiral perturbation theory indicate the strange tensor charge in the neutron is of order 0.1 to 0.3 of the valence charges, contr...

  3. Constraining ALP-Top Interaction from the Chromoelectric Dipole Moment of the Top Quark

    hep-ph 2025-07 conditional novelty 6.0 of 10

    The paper derives the one- and two-loop top quark CEDM induced by a CP-violating ALP at q^2 = m_t^2 and uses it to set new bounds on the ALP-top coupling, with the neutron EDM giving the strongest of the three new limits.

  4. The theory of electric dipole moments: the view from below

    hep-ph 2026-07 unverdicted novelty 2.0 of 10

    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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