Strong CP violation and the neutron electric dipole form factor

Abstract

We calculate the neutron electric dipole form factor induced by the CP violating theta-term of QCD, within a perturbative chiral quark model which includes pion and kaon clouds. On this basis we derive the neutron electric dipole moment and the electron-neutron Schiff moment. From the existing experimental upper limits on the neutron electric dipole moment we extract constraints on the theta-parameter and compare our results with other approaches.

18 pages, 2 figures, accepted for publication in Phys. Atom. Nucl

References in corpus (16)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Electric dipole moments as probes of new physics
• EDM Constraints in Supersymmetric Theories
• Three-Quark Potential in SU(3) Lattice QCD
• Electric Dipole Moments in the MSSM at Large tan(beta)
• Theta Vacua, QCD Sum Rules, and the Neutron Electric Dipole Moment
• Low Energy Tests of the Weak Interaction
• Sigma-term physics in the perturbative chiral quark model
• The electric dipole moment of the neutron in chiral perturbation theory
• Electromagnetic Structure of the Nucleon in the Perturbative Chiral Quark Model
• The electric dipole form factor of the nucleon
• piN scattering and electromagnetic corrections in the perturbative chiral quark model
• Electromagnetic form factors of the baryon octet in the perturbative chiral quark model
• Updated analysis of meson-nucleon sigma terms in the perturbative chiral quark model
• Neutron electric dipole moment: Constituent-dressing and compositeness
• CP violation in supersymmetric theories

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• The Nucleon Electric Dipole Form Factor From Dimension-Six Time-Reversal Violation
• The Electric Dipole Form Factor of the Nucleon in Chiral Perturbation Theory to Sub-leading Order
• Implication of the hidden sub-GeV bosons for the $(g-2{)}_{\mu }$, ${}^8$Be-${}^4$He anomaly, proton charge radius, EDM of fermions and dark axion portal
• Neutron and proton electric dipole moments from $N_f=2+1$ domain-wall fermion lattice QCD
• CP-violating decays of the pseudoscalars eta and eta' and their connection to the electric dipole moment of the neutron
• Updated limits on the CP violating $\eta \pi \pi$ and ${\eta }^{\prime }\pi \pi$ couplings derived from the neutron EDM
• Deuteron EDM induced by CP violating couplings of pseudoscalar mesons
• Search for the $CP$-violating strong decays $\eta \to {\pi }^{+}{\pi }^{-}$ and ${\eta }^{\prime }(958)\to {\pi }^{+}{\pi }^{-}$
• Relating CP-violating decays to the neutron EDM