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Concept
Neutral particle
Summary
In physics, a neutral particle is a particle without an electric charge, such as a neutron.
The term neutral particles should not be confused with truly neutral particles, the subclass of neutral particles that are also identical to their own antiparticles.
Long-lived neutral particles provide a challenge in the construction of particle detectors, because they do not interact electromagnetically, except possibly through their magnetic moments. This means that they do not leave tracks of ionized particles or curve in magnetic fields. Examples of such particles include photons, neutrons, and neutrinos.
list of mesons and list of baryons
Other neutral particles are very short-lived and decay before they could be detected even if they were charged. They have been observed only indirectly.
Official source
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