As an early Christmas present, please consider reading our new preprint on the arXiv. Collaborating with my former MSc student and teo other researchers in Amsterdam and Padua, we took a closer look at our model catalogue of axion models in light of a recent observation that axion models can imply an alternative cosmological history. As a result, we find “model islands” below the usual axion window and, in case of a discovery, the catalogue might prove invaluable for identifying the observed axion model.

In the spirit of AxiTools, we made the models and some auxiliary material available on Zenodo.