In a supersymmetric effective field theory the axion-like particle mass is generated predominantly by soft supersymmetry-breaking effects, producing a heavy ALP spectrum controlled by the SUSY-breaking scale.
In this section, we analyze the masses of the axion-like particle, the saxion, and the axino, focusing on their parametric dependence on the soft supersymmetry-breaking sector
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Axion-like particles from soft supersymmetry breaking
In a supersymmetric effective field theory the axion-like particle mass is generated predominantly by soft supersymmetry-breaking effects, producing a heavy ALP spectrum controlled by the SUSY-breaking scale.