Strong <Emphasis Type="Italic">CP</Emphasis> violation and the neutron electric dipole form factor |
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Authors: | J Kuckei C Dib A Faessler T Gutsche S G Kovalenko V E Lyubovitskij K Pumsa-ard |
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Institution: | 1.Institut für Theoretische Physik,Universit?t Tübingen,Tübingen,Germany;2.Departamento de Física,Universidad Técnica Federico Santa María,Valparaíso,Chile |
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Abstract: | We calculate the neutron electric dipole form factor induced by the CP-violating θ 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 θ parameter and compare our results with other approaches.
The text was submitted by the authors in English. |
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