Anomaly-Mediated Supersymmetry Breaking with Axion

We construct hadronic axion models in the framework of the anomaly-mediatedsupersymmetry breaking scenario. If the Peccei-Quinn symmetry breaking isrelated to the supersymmetry breaking, mass spectrum of the minimalanomaly-mediated scenario is modified, which may solve the negative sleptonmass problem in the minimal anomaly-mediated model. We find several classes ofphenomenologically viable models of axion within the framework of the anomalymediation and, in particular, we point out a new mechanism of stabilizing theaxion potential. In this class of models, the Peccei-Quinn scale is related tothe messenger scale. We also study phenomenological aspects of this class ofmodels. We will see that, in some case, the lightest particle among thesuperpartners of the standard-model particles is stau while the lightestsuperparticle becomes the axino, the superpartner of the axion. With such aunique mass spectrum, conventional studies of the collider physics andcosmology for supersymmetric models should be altered.Comment: 20 pages, 5 figures, added footnotes and references for section