In physics, a neutral particle is a particle without an electric charge, such as a neutron.
Stable or long-lived neutral particles
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.
Other neutral particles
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. They include:
- Z bosons
- Dozens of heavy neutral hadrons:
- Neutral mesons such as the
π0
and
K0 - The neutral Delta baryon (
Δ0
), and other neutral baryons, such as the
Ξ0
and
Λ0
- Neutral mesons such as the
See also
- Neutral particle oscillation
- Truly neutral particle
References
- K. Nakamura et al. (Particle Data Group), JP G 37, 075021 (2010) and 2011 partial update for the 2012 edition
- Particle listings - gamma
- Particle listings –
n
- Particle listings - Neutrino Properties
- Particle listings - Z boson
- Particle listings - Pi0
- Particle listings - K0
- Particle listings –
Δ
(1232) - Particle listings - Xi0
- Particle listings - Lambda
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In physics a neutral particle is a particle without an electric charge such as a neutron Stable or long lived neutral particlesLong 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 Other neutral particlesOther neutral particles are very short lived and decay before they could be detected even if they were charged They have been observed only indirectly They include Z bosons Dozens of heavy neutral hadrons Neutral mesons such as the p0 and K0 The neutral Delta baryon D0 and other neutral baryons such as the 30 and L0See alsoNeutral particle oscillation Truly neutral particleReferencesK Nakamura et al Particle Data Group JP G 37 075021 2010 and 2011 partial update for the 2012 editionParticle listings gamma Particle listings n Particle listings Neutrino Properties Particle listings Z boson Particle listings Pi0 Particle listings K0 Particle listings D 1232 Particle listings Xi0 Particle listings Lambda This particle physics related article is a stub You can help Wikipedia by expanding it vte
