Seminario del Departamento de Física Teórica: “Spectrum of axion dark matter from strings?”.- Jueves 23 de marzo
El jueves 23 de marzo a las 12:10 h, en el Seminario de Física Teórica, tendrá lugar la conferencia del Seminario del Departamento de Física Teórica que impartirá Ken’ichi Saikawa (Universidad de Kanazawa). Se titula “Spectrum of axion dark matter from strings?”
Abstract:
Axion is one of the best motivated candidates for dark matter. In this talk, we discuss the production of dark matter axions in the early universe, mainly focusing on the scenario where the Peccei-Quinn symmetry is broken after inflation. In this scenario, axions could be produced by the decay of cosmic strings, and understanding of the spectrum of axions radiated by the strings is indispensable for a sharp prediction for "typical" axion dark matter mass. After discussing current issue on this topic, we present some results form large scale simulations of axion strings.
