Abstract
With the increasing interest in dark matter axion detection through haloscopes, in which different international groups are currently involved, the RADES group was established in 2016 with the goal of developing very sensitive detection systems to be operated in dipole magnets. This review deals with the work developed by this collaboration during its first five years: from the first designs—based on the multi-cavity concept, aiming to increase the haloscope volume, and thereby improve sensitivity—to their evolution, data acquisition design, and finally, the first experimental run. Moreover, the envisaged work within RADES for both dipole and solenoid magnets in the short and medium term is also presented.
Highlights
Since Peccei and Queen established a mechanism to solve the strong Charge–Parity (CP) problem [1,2], and subsequently Weinberg [3] and Wilczek [4] predicted the existence of a new particle, the axion, the defining and execution of different experimental setups in order to detect this proposed particle have gained an increasing interest
In 2018 the 5-cavity haloscope described in Section 4.1 and the associated receiver were installed in the CAST magnet
The RADES collaboration joined in 2016 the international quest for dark matter axion detection, and during the last five years has developed a new kind of resonant haloscope based on the multi-cavity concept
Summary
Since Peccei and Queen established a mechanism to solve the strong Charge–Parity (CP) problem [1,2], and subsequently Weinberg [3] and Wilczek [4] predicted the existence of a new particle, the axion, the defining and execution of different experimental setups in order to detect this proposed particle have gained an increasing interest. Due in part to the persistently negative outcomes of the many worldwide efforts to detect weakly interacting massive particles (WIMPs), the favorite DM candidate for the last three decades, the axion DM hypothesis, has been attracting more interest in the experimental community Apart from their gravitational interaction with normal matter, axions are expected to have a weak electromagnetic (photons) and Dirac fermionic (e.g., nucleons or electrons) coupling. At the beginning of the RADES collaboration, the successful experiment ADMX had already completed the exploration in the 1.9–3.65 μeV mass range (460–890 MHz) with exclusion limits that reached those of the KSVZ model [24]. RADES [32] is among this latter group
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
