Axion Theory Review
نویسنده
چکیده
where θ̄ = θQCD + θQFD which violates CP. From the experimental bound on the neutron electric dipole moment , |θ̄| is required to be less than 10. This is “the strong CP problem”. The axion solution of the strong CP problem is to introduce a dynamical field axion (a) so that θ̄ is settled very near 0. In this case, one can study the following Lagrangian below the electroweak scale, after integrating out the quark fields,
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تاریخ انتشار 1998