particle physics library

Learn about Particle Physics and get information on topics related to Particle Physics.

Featured Article: Hadron

Hadron, HAD ron, is a major group of subatomic particles. See more »

Alpha particle

Alpha AL fuh particle is an atomic nucleus that consists of two protons and two neutrons.

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Antimatter

Antimatter is matter composed of elementary particles that are the opposite of ordinary particles.

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Baryon

Baryon, BAR ee on, is a unit of matter smaller than an atom composed of three still smaller particles called quarks.

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Beta particle

Beta, BAY tuh, particle is an electron given off by the nucleus of a radioactive atom when it undergoes a nuclear transformation.

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Boson

Boson, BOH son, is any member of a certain class of atomic and subatomic particles.

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Cyclotron

Cyclotron is a machine that accelerates electrically charged atomic particles to high energies.

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Electron

Electron is a negatively charged subatomic particle.

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Fermion

Fermion, FEHR mee on or FUR mee on, is any member of a certain class of atomic and subatomic particles.

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Hadron

Hadron, HAD ron, is a major group of subatomic particles.

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Meson

Meson, MEHS on, MEHZ on, MEE son, or MEE zon, is any of about 150 kinds of unstable subatomic particles.

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Muon

Muon, MYOO on, is a type of elementary particle that closely resembles an electron but has a greater mass.

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Neutrino

Neutrino is any of three types of subatomic particles that have no electric charge.

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Neutron

Neutron is a subatomic particle.

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Particle detector

Particle detector is a device that physicists use to observe subatomic particles, units of matter smaller than an atom.

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Proton

Proton, PROH ton, is a positively charged subatomic particle.

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Psi particle

Psi, sy, particle, also called a J particle, is a type of subatomic particle.

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Quark

Quark, kwawrk, is one of the three families of particles that serve as "building blocks" of matter.

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Shadow matter

Shadow matter is a hypothetical form of matter that is thought to interact with ordinary matter only through the force of gravity.

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Subatomic particle

Subatomic particle is a unit of matter smaller than an atom.

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Tachyon

Tachyon, TAK ee on, is a hypothetical elementary particle.

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