Neutralpionen
Neutralpionen, also known as neutral pions or pi-zero mesons, are subatomic particles classified as mesons. They are composed of a quark and an antiquark, specifically an up quark and an up antiquark, or a down quark and a down antiquark. Neutral pions are among the lightest mesons. They are unstable and decay very rapidly, typically within a very short timeframe.
The primary decay mode for a neutral pion is into two photons. This decay is mediated by
Neutral pions play a role in nuclear physics, particularly in the strong nuclear force which binds protons