To use all functions of this page, please activate cookies in your browser.
With an accout for my.chemeurope.com you can always see everything at a glance – and you can configure your own website and individual newsletter.
- My watch list
- My saved searches
- My saved topics
- My newsletter
The antineutron is the antiparticle of the neutron. It was discovered by Bruce Cork in 1956, a year after the antiproton was discovered. An antineutron has the same mass as a neutron, and no net electric charge. However, it is different from a neutron by being composed of antiquarks, rather than quarks. In particular, the antineutron consists of two anti-down quarks and one anti-up quark.
Additional recommended knowledge
The magnetic moment of the antineutron is the opposite of that of the neutron. It is +1.91 µN for the antineutron but -1.91 µN for the neutron (relative to the direction of the spin). Here µN is the nuclear magneton.
Since the antineutron is electrically neutral, it cannot easily be observed directly. Instead, the products of its annihilation with ordinary matter are observed.
There are theoretical proposals that neutron-antineutron oscillations exist, a process which would occur only if there is an undiscovered physical process that violates baryon number conservation.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Antineutron". A list of authors is available in Wikipedia.|