No this is not a Dan Brown novel, they actually have managed to capture anti-matter in an electric field at CERN.
Apparently, they managed to capture 38 particles of anti-hydrogen in an electric field for one sixth of a second.
It will not be any use as a weapon due to the problems of generating it in the first place, but as a tool for researching particle physics and understanding the universe it is a massive breakthrough.
More on the story here.