Münster 2017 – scientific programme

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T: Fachverband Teilchenphysik

T 119: Hauptvorträge 4

T 119.3: Invited Talk

Friday, March 31, 2017, 10:05–10:45, H 1

The quest for Axions and Axion-like particles — •Javier Redondo — Zaragoza University, Spain — Max Planck Institut für Physik, München, Germany

The QCD axion and its related axion-like particles appear in well motivated extensions of the standard model and could account for a number of unexplained phenomena, most importantly the absence of CP violation in the strong interactions and the nature of dark matter. The last years have witnessed a growing interest of the experimental verification of these hypothetical particles. Because of their small mass and tiny interactions with ordinary matter, one requires experimental techniques quite different from the usual high energy particle experiments. We will review motivation and hints for the existence of these particles with a particular emphasis on the experimental quest to detect them. Some techniques (solar axions, photon regeneration, dark matter MW cavity experiments) have already reached the level of maturity to develop into large scale projects (IAXO, ALPS, ADMX, CAPP) while recent proposals (CASPER, MADMAX) promise to cover many of the gaps left in parameter space.