Three-gluon contribution to the neutron electric dipole moment in a model without the strong CP problem

We calculate the contribution of Weinberg's three-gluon operator to the electric dipole moment of the neutron in a left-right symmetric model which solves the strong CP problem without any Peccei-Quinn symmetry. We find that as opposed to other left-right symmetric models, the contribution from...

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Bibliographic Details
Published inPhysics letters. B Vol. 249; no. 3; pp. 467 - 472
Main Author Rothstein, I.Z.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.10.1990
Elsevier Science
Subjects
Classical and quantum physics: mechanics and fields
Exact sciences and technology
Physics
Quantum mechanics
Neutrons
Gauge group
Models
Symmetry
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Summary:We calculate the contribution of Weinberg's three-gluon operator to the electric dipole moment of the neutron in a left-right symmetric model which solves the strong CP problem without any Peccei-Quinn symmetry. We find that as opposed to other left-right symmetric models, the contribution from the Weinberg operator is negligible compared to the experimental bound. This is shown to be a consequence of imposing the abovementioned features.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(90)91018-7