Weinberg Operator Contribution to the Hadronic CP Violation

Abstract

The CP violating Weinberg operator (or the gluon chromo-electric dipole moment) is generated in many candidates of new physics beyond the standard model, and it contributes to observables such as the electric dipole moments (EDM) of the neutron, nuclei and atoms. In this proceedings contribution, we review the present understanding of the Weinberg operator as well as the result of the estimation of its effect to the EDM of ${}^3$He nucleus through the contact CP-odd nuclear force.

5 pages, 2 figures, proceedings of the 24th International Spin Symposium (SPIN2021), Matsue, Japan, October 2021

References in corpus (8)

• Measurement of the permanent electric dipole moment of the neutron
• New Limit on the Permanent Electric Dipole Moment of ${}^{129}$Xe using ${}^3$He Comagnetometry and SQUID Detection
• P- and T-Violating Lagrangians in Chiral Effective Field Theory and Nuclear Electric Dipole Moments
• Enhancement of the CP-odd effect in the nuclear electric dipole moment of ${}^6$Li
• Weinberg operator contribution to the nucleon electric dipole moment in the quark model
• Short flow-time coefficients of CP-violating operators
• Ab initio calculations of electric dipole moments of light nuclei
• Nucleon electric dipole moment from polarized deep inelastic scattering

Cited by in corpus (1)

• Contribution of the Weinberg-type Operator to atomic and nuclear electric dipole moments