File:Quark_structure_antineutron.svg · Wikimedia Commons · See Wikimedia Commons
antineutron
Sign in to saveThe antineutron is the antiparticle of the neutron with symbol . It differs from the neutron only in that some of its properties have equal magnitude but opposite sign. It has the same mass as the neutron, and no net electric charge, but has opposite baryon number (+1 for neutron, −1 for the antineutron). This is because the antineutron is composed of antiquarks, while neutrons are composed of quarks. The antineutron consists of one up antiquark and two down antiquarks.
Key facts
- Particle.name
- Antineutron
- Particle.image
- 200px
- Particle.caption
- The quark structure of the antineutron.
- Particle.classification
- antibaryon
- Particle.composition
- 1 up antiquark, 2 down antiquarks
- Particle.statistics
- fermionic
- Particle.group
- hadron
- Particle.interaction
- strong, weak, electromagnetic, gravitational
- Particle.antiparticle
- neutron
- Particle.discovered
- Bruce Cork (1956)
- Particle.mean_lifetime
- (free)
- Particle.electric_charge
- 0 e
- Particle.spin
- ħ
via Wikipedia infobox
Wikidata facts
- Mass
- 939.56542052
- Image
- Quark structure antineutron.svg
Show 10 more facts
- discoverer or inventor
- Bruce Cork
- isospin z-component
- 0.5
- isospin quantum number
- 0.5
- time of discovery or invention
- 1956-00-00
- antiparticle
- neutron
- Monte Carlo Particle Number
- -2112
- spin quantum number
- 0.5
- interaction
- gravity
- electric charge
- 0
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
Sources (1)
via Wikidata · CC0
~2 min read
Encyclopedic overview
5 sectionsContents
- Background
- Magnetic moment
- See also
- References
- External links
The antineutron is the antiparticle of the neutron with symbol . It differs from the neutron only in that some of its properties have equal magnitude but opposite sign. It has the same mass as the neutron, and no net electric charge, but has opposite baryon number (+1 for neutron, −1 for the antineutron). This is because the antineutron is composed of antiquarks, while neutrons are composed of quarks. The antineutron consists of one up antiquark and two down antiquarks.
== Background ==
Excerpted from Wikipedia’s “antineutron” article, available under the CC BY-SA 4.0 licence.