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

نویسندگان

  • Johan Bijnens
  • Elisabetta Pallante
چکیده

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 |de | ≈ 5 × 10−32 e·cm and |de | ≈ 4 × 10−32 e·cm. The former estimate is similar to the quark model estimates done previously.

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تاریخ انتشار 1996