Riddle of matter remains unsolved: Proton and antiproton share fundamental properties
https://m.phys.org/news/2017-10-riddle-unsolved-proton-antiproton-fundamental.html
Riddle of matter remains unsolved: Proton and antiproton share fundamental properties
https://m.phys.org/news/2017-10-riddle-unsolved-proton-antiproton-fundamental.html