Speaker
Anne Davis
Description
Axio-dilaton models provide a well-motivated minimal class of models for which self-interactions can be explored. This minimal model can successfully describe both Dark Matter and Dark Energy. The axion is the Dark Matter and the dilaton is the Dark Energy — and that they robustly predict several new phenomena for the CMB and structure formation that can be sought in observations. These include specific types of Dark Energy evolution and small space- and time-dependent changes to particle masses post-recombination that alter the Integrated Sachs-Wolfe effect, cause small changes to structure growth and more.