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The electric dipole moment of the neutron in chiral perturbation theory

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arxiv hep-ph/0004011 v1 pith:FKOEFBWW submitted 2000-04-03 hep-ph nucl-th

classification hep-phnucl-th
keywords chiraldipoleelectriclagrangianneutronperturbationtheorytheta
verification ladder T0 review T1 audit T2 compute T3 formal

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We calculate the electric dipole moments of the neutron and the Lambda within the framework of heavy baryon chiral perturbation theory. They are induced by strong CP-violating terms of the effective Lagrangian in the presence of the vacuum angle theta_0. The construction of such a Lagrangian is outlined and we are able to give an estimate for theta_0.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. 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. CP violation studies at Super Tau-Charm Facility

    hep-ex 2025-02 conditional novelty 4.0 of 10

    A future Super Tau-Charm Facility is projected to test CP violation in hyperon, tau, and charm decays at 1e-4 to 1e-3 sensitivities and improve the kaon CPT mass-difference limit tenfold.

  3. 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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