| Unstable Particle Story1 #722779 The primary components of ordinary matter, e.g. the proton or the electron, are stable. But most pf the particles created in high energy collisions are unstable, and spontaneously transform (decay) into lighter ones. The particles in the final state may themselves be unstable and subject to further decay, until only stable particle remain. In collider experiments the final set of particles is analysed to reconstruct the initial particle properties. |
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