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Recent lab measurements suggest that the detection of microwave emission from air showers, caused by free electrons collisions with neutrals in the plasma left after the passage of the shower, can be used as a feasible technique to study ultra-high energy cosmic rays. This promising technique, if confirmed, would provide a calorimetric energy of the primary particle as fluorescence detectors in combination with a high-duty cycle and without the drawback of atmospheric attenuation (which requires continuous monitoring with specialized equipment).

Several activities based on this potential detection method are now ongoing in the cosmic-ray community. The Kavli Institute for Cosmological Physics at the University of Chicago will hold a workshop in microwave radio detection of UHECRs. The objective of the workshop is to contrast ideas and current efforts while aiming towards an effective coordination of the different projects. Time will be dedicated to discuss the different approaches, simulation tools, and hardware solutions.

Kavli Institute for Cosmological Physiscs University of Chicago