Speaker
Description
Firmly established in astrophysical observations, dark matter evades direct detection in experiments. Axions and axion-like particles as well as dark photons are among the leading dark-matter candidates, and numerous attempts to detect them in laboratories have been performed. In Cosmological Axion Sarov Haloscope (CASH) project we propose to advance these efforts substantially, extending the sensitivity for dark-matter axions in the mass range (38–54) μeV down to the axion-photon couplings motivated by generic models of quantum chromodynamics axion. Single-photon detectors based on Josephson Junctions operating at ultra-low temperatures 20 mK which overcome the standard quantum limit are the key elements of the experiment. The projected sensitivity will be reached in one year of data taken with a magnetic field of (1–10) T, making CASH the most sensitive haloscope in this mass range. Additionally, CASH setup will be sensitive to high-frequency gravitational waves which can transfer to photons in a strong magnetic field.
