In order for the paper to be self-contained let's recall that the pionium is formed by a [[pi].sup.+] and [[pi].sup.-] mesons, the positronium is formed by an antielectron (positron) and an electron in a semi-stable arrangement, the protonium
is formed by a proton and an antiproton also semi-stable, the antiprotonic helium is formed by an antiproton and electron together with the helium nucleus (semi-stable), and muonium is formed by a positive muon and an electron.
Physicists in Geneva realized that several years ago they had accidentally combined matter and antimatter into something called protonium
. An elementary school science class determined that popcorn pops more efficiently and tastes better when the kernels are first sent into space; Air Force scientists concluded that a ring of super-conducting magnets could fling satellites into orbit, or weapons across continents; and roboticists successfully programmed a swarm of dumb robots to move an object decorated with red lights across a floor toward a white target.
In a second phase, it will study protonium
, a hydrogen-like atom made of a proton and an antiproton.
Another possibility is the making of protonium
, a system in which a proton and an antiproton are bound together and orbit each other.