Neutral particle

In physics, a neutral particle is a particle with no electric charge.

Stable or long-lived neutral particles

Long-lived neutral particles do not decay for a very long time. Examples of such particles include photons,[PDG 1] neutrons,[PDG 2] and neutrinos.[PDG 3]

Other neutral particles

Other neutral particles are very short-lived. They decay before they can be detected by a particle detector. They have been observed only indirectly, such as tracks of ionized particles in a particle accelerator. They include:

Z bosons[PDG 4]
Dozens of heavy neutral hadrons:
- Neutral mesons such as the pion[PDG 5] and kaon[PDG 6]
- The neutral Delta baryon,[PDG 7] and other neutral baryons, such as the xi baryon[PDG 8] and lambda baryon[PDG 9]

References

K. Nakamura et al. (Particle Data Group), JP G 37, 075021 (2010) and 2011 partial update for the 2012 edition

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[PDGPhoton-1] Particle listings - gamma

[PDGNeutron-2] Particle listings – Error no symbol defined

[PDGNeutrino-3] Particle listings - Neutrino Properties

[PDGZ-4] Particle listings - Z boson

[PDGPion-5] Particle listings - Pi0

[PDGKaon-6] Particle listings - K0

[PDGDelta-7] Particle listings – Error no symbol defined(1232)

[PDGXi0-8] Particle listings - Xi0

[PDGLambda-9] Particle listings - Lambda