Particle Physics

Particle physics (also known as high energy physics) is a branch of physics that studies the nature of the particles that constitute matter and radiation.

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Modern particle physics research is focused on subatomic particles, which have less structure than atoms.

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These include atomic constituents such as electrons, protons, and neutrons (protons and neutrons are actually composite particles, made up of quarks), particles produced by radiative and scattering processes, such as photons, neutrinos, and muons, as well as a wide range of exotic particles.