ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) is an experiment testing for CPT-symmetry by laser spectroscopy of antiprotonic helium and microwave spectroscopy of the hyperfine structure of antihydrogen. It also measures atomic and nuclear cross sections of antiprotons on various targets at extremely low energies. The spokesperson for the experiment is Ryugo S. Hayano from the University of Tokyo. It was originally proposed in 1997.
Read more about this topic: Antiproton Decelerator
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