Elementary Particle Interactions

Synonyms

Elementary Particle Interaction

Interaction, Elementary Particle

Interactions, Elementary Particle

Particle Interaction, Elementary

Particle Interactions, Elementary

The interactions of particles responsible for their scattering and transformations (decays and reactions). Because of interactions, an isolated particle may decay into other particles. Two particles passing near each other may transform, perhaps into the same particles but with changed momenta (elastic scattering) or into other particles (inelastic scattering). Interactions fall into three groups: strong, electromagnetic, and weak. (From McGraw-Hill Encyclopedia of Science & Technology, 7th ed)