Positronium is a system consisting of an electron and its anti-particle, a positron, bound together into an exotic atom, specifically an onium. Unlike hydrogen, the system has no protons. The system i
The Positronium Beam at University College London, a lab used to study the properties of positronium.
The positron or antielectron is the particle with an electric charge of +1e, a spin of 1/2 ħ, and the same mass as an electron. It is the antiparticle of the electron. When a positron collides with an
Positronium
…Positronium (Ps) is a system consisting of an electron and its anti-particle, a positron, bound together into an exotic atom, specifically an onium. Unlike hydrogen, the system has no protons. The system is unstable: the two particles…
Wilson cloud chambers used to be very important particle detectors in the early days of particle physics. They were used in the discovery of the positron, muon, and kaon.