Time and date: Tuesday November 12th @15:00 (CET)
Speaker: Joerg Jaeckel (Institut für Theoretische Physik, Universität Heidelberg)
Abstract: In this talk we will have a look at dark matter made from very light bosons. After a brief review of the standard scenario of axion-like particles (ALPs) we will discuss some surpising aspects regarding the stability of ALP DM. Then we turn to non-minimal models. In particular we consider a scenario where the field space of the ALP is enlarged by a monodromy. In addition we have a look at the case where the light boson caries an approximately conserved charge.