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Dynamical axion
Phys. Rev. D 32, 1828 – Published 1 October, 1985
DOI: https://doi.org/10.1103/PhysRevD.32.1828
Abstract
We introduce a new non-Abelian force axicolor which confines between and GeV. By choosing appropriate axiquarks, we build a realistic dynamical axion model. This model predicts a heavy quark q. The dynamical axion model does not involve the naturalness problem of scalar mass. Two well-known cosmological problems, the domain-wall problem and the energy density problem of heavy composite particles, are not present in this model. We also discuss domain walls with two θ’s.
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