Nucleon electric dipole moment from polarized deep inelastic scattering

Abstract

In a previous paper \cite{Hatta:2020ltd}, we have pointed out the connection between the $CP$-odd three-gluon (Weinberg) operator and certain twist-four corrections in polarized deep inelastic scattering. Based on this observation, we give a numerical estimate of the electric dipole moment of the proton and neutron induced by the Weinberg operator. Our result is smaller than the previous estimates based on QCD sum rules by a factor of about 3 or more.

arXiv comment8 pages. v2 discussion on uncertainties added, to be published in Phys.Lett.B

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Cited by in corpus (7)

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• Weinberg operator contribution to the CP-odd nuclear force in the quark model
• Weinberg Operator Contribution to the Hadronic CP Violation
• Beautiful and charming chromodipole moments
• Quark model analysis of the Weinberg operator contribution to the nucleon EDM
• Nucleon matrix element of Weinberg's CP-odd gluon operator from the instanton vacuum
• Contribution of the Weinberg-type Operator to atomic and nuclear electric dipole moments