StrongCPviolation and the neutron electric dipole moment | Zendy

Jiang Liu | Zendy; Chao-Qiang Geng | Zendy; John N. Ng | Zendy

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StrongCPviolation and the neutron electric dipole moment

Author(s) -

Jiang Liu,

Chao-Qiang Geng,

John N. Ng

Publication year - 1989

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.63.589

Subject(s) - cp violation , physics , electric dipole moment , dipole , neutron electric dipole moment , moment (physics) , homogeneous space , particle physics , neutron , strong cp problem , fermion , quantum electrodynamics , nuclear physics , quantum mechanics , axion , dark matter , geometry , mathematics

[[abstract]]The authors derive an identity that relates the fermion electric dipole moment from weak CP-violation effects to the strong CP parameter &thetas;. In the absence of Peccei-Quinn-type symmetries, they find that requiring &thetas; naturally small generally implies that, for a large class of models, the dominant contribution to the neutron electric dipole moment dn comes from strong CP violation rather than directly from weak CP-violation effects[[fileno]]2010129010018[[department]]物理

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