Weak long distance contributions to the neutron and proton electric dipole moments

Johan Bijnens, Elisabetta Pallante

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Abstract

We evaluate the long distance weak contribution to the neutron and proton electric dipole moments using an effective Lagrangian framework. We estimate the coefficients needed by a factorization hypothesis and additional assumptions on γ5 terms in the baryon lagrangian. We obtain |dne| ≈ 5 × 10-32 e·cm and |dpe| ≈ 4 × 10-32 e·cm. The former estimate is similar to the quark model estimates done previously.
Original languageEnglish
Pages (from-to)207-214
Number of pages8
JournalPhysics Letters B
Volume387
Issue number1
DOIs
Publication statusPublished - 10-Oct-1996
Externally publishedYes

Keywords

  • CHIRAL PERTURBATION-THEORY
  • NONLEPTONIC DECAYS
  • STRANGE PARTICLES
  • CP-VIOLATION
  • RULE
  • MODEL

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