Quark model analysis of the Weinberg operator contribution to the nucleon EDM

Abstract

The Weinberg operator (chromo-electric dipole moment of gluon) is a CP violating quantity 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 or atoms which are currently measured in experiments. In this proceedings contribution, we report on our result of the evaluation of the Weinberg operator contribution to the nucleon EDM in the nonrelativistic quark model using the Gaussian expansion method.

6 pages, 3 figures, proceedings of the 8th Asia-Pacific conference on Few-Body problems in Physics (APFB2020), Kanazawa, Japan, March 2021

References in corpus (10)

• Measurement of the permanent electric dipole moment of the neutron
• Quark level and hadronic contributions to the electric dipole moment of charged leptons in the standard model
• Enhancement of the CP-odd effect in the nuclear electric dipole moment of ${}^6$Li
• Probing Light Gauge Bosons in Tau Neutrino Experiments
• The analytic structure of the lattice Landau gauge gluon and ghost propagators
• Short flow-time coefficients of CP-violating operators
• Weinberg operator contribution to the nucleon electric dipole moment in the quark model
• $CP$-odd gluonic operators in QCD spin physics
• Ab initio calculations of electric dipole moments of light nuclei
• Nucleon electric dipole moment from polarized deep inelastic scattering