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arXiv · hep-ph/9606285

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 $γ_5$ terms in the baryon lagrangian. We obtain $|d_e^n|\approx 5\times 10^{-32}$ e$\cdot$cm and $|d_e^p|\approx 4\times 10^{-32}$ e$\cdot$cm. The former estimate is similar to the quark model estimates done previously.

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Johan Bijnens, Elisabetta Pallante. 1996-06-10. Weak long distance contributions to the neutron and proton electric dipole moments. https://doi.org/10.1016/0370-2693(96)00982-3

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