Scientists working at Brookhaven National Laboratory, including physicists at Rice University, have announced the first measurements of the attractive force between antiprotons. The discovery gives physicists new ways to look at the forces that bind matter and antimatter.
Specifically, the team measured two important parameters: the scattering length and the effective range of interaction between two antiprotons. This gave scientists a fundamental new way to understand the force that holds together the nuclei in antimatter and how this compares to matter.
“This is about the subtle difference in the way matter and antimatter interact with each other,” said Rice physicist Frank Geurts.