Attractive forces unlikely to be source of matter - antimatter difference

摘要

The attractive force between antiprotons - the antiparticle of proton - has been measured for the first time. A research team at Rice University measured the length and range of interaction between two antiprotons - stable shortlived antiparticles - and succeeded in quantifying the force holding together the nuclei in antimatter. These findings support previous studies showing that antimatter and matter forces are similar.