Messengers from the Cosmos

1. The discovery of the cosmic radiation.- 2. Confirmation of the existence of a cosmic radiation.- 3. The nature of the cosmic radiation.- 4. New particles and their links with the cosmic radiation .- 5. Developments of the techniques for the detection of cosmic rays.- 6. The interaction of primary cosmic rays in the atmosphere.- 7. Extensive air showers.- 8. The detection of extensive air showers.- 9. The primary cosmic radiation.- 10. The secondary cosmic radiation.

Francesco Riggi has been full professor of Experimental Nuclear and Particle Physics in the Department of Physics and Astronomy at the University of Catania, Italy. He has been working in nuclear physics at low and high energy since 1974 and joined, at its inception, the ALICE Collaboration, a large experiment at the CERN Large Hadron Collider to study nuclear matter under extreme conditions. Within the ALICE Collaboration, he has contributed to the construction of the electromagnetic calorimeter and the silicon pixel detector, investigating the production of multistrange particles, short-lived resonances and light (anti)nuclei.



He has also been active in studying the physics of cosmic rays over the last 20 years, leading several projects concerning the use of cosmic muons in tomographic applications, and has served as a member of the educational project EEE, operating a wide network of cosmic ray telescopes. He is the author or the co-author of more than 600 scientific papers in all such areas and has contributed to various international conferences, as well as acting as a referee for various journals of nuclear and applied physics. He has also spent various periods abroad for research, in several European countries, the USA and Australia. As a professor at the Department of Physics and Astronomy in Catania, he has taught several courses in general and nuclear physics for 40 years. He is also the co-author of a textbook in experimental physics.