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T: Fachverband Teilchenphysik

T 12: Search for New Particles I

T 12.1: Group Report

Monday, March 15, 2021, 16:00–16:20, Tl

Upcoming Experimental Axion Searches at DESY — •Aaron Spector — DESY, Hamburg, Germany

With the physics case for axions and axion-like particles growing ever stronger, DESY is now set to host three upcoming axion searches, ALPS II, a light shining through a wall experiment, BabyIAXO, a solar axion helioscope, and MADMAX, a dark matter haloscope. While the methods used in each of these experiments are different, all of them utilize the Sikivie effect where axions convert to photons in the presence of a DC magnetic field with a rate proportional to the coupling constant g_aγγ. Since they rely on different assumptions about the source of the axions, these searches will target complementary regions of the axion-like particle parameter space where evidence indicates these particles could exist. Together, their results will offer a cohesive picture of g_aγγ and potentially identify the cause of a number of phenomena which cannot be explained by the standard model. This talk will introduce these experiments and their sensitivity curves, in addition to providing a status report and timeline for each of them.