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meson
[ mee-zon, ‑son, mez-on, mes‑ ]
noun
- Physics. any hadron, or strongly interacting particle, other than a baryon. Mesons are bosons, having spins of 0, 1, 2, …, and, unlike baryons, do not obey a conservation law.
meson
/ ˈmiːzɒn /
noun
- any of a group of elementary particles, such as a pion or kaon, that usually has a rest mass between those of an electron and a proton, and an integral spin. They are responsible for the force between nucleons in the atomic nucleus Former namemesotron See also muon
meson
/ mĕz′ŏn′,mĕs′-,mē′zŏn′,-sŏn′ /
- Any of a family of subatomic particles that are composed of a quark and an antiquark. Their masses are generally intermediate between leptons and baryons, and they can have positive, negative, or neutral charge. Mesons form a subclass of hadrons and include the kaon, pion and J/psi particles. Mesons were originally believed to be the particles that mediated the strong nuclear force, but it has since been shown that the gluon mediates this force.
- See Table at subatomic particle
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Derived Forms
- meˈsonic, adjective
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Other Words From
- me·sonic adjective
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Word History and Origins
Origin of meson1
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Word History and Origins
Origin of meson1
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Example Sentences
Mesons can sometimes appear fleetingly on Earth, when high-energy cosmic rays collide with typical matter.
A type of meson called D0, for example, which contains charm quarks, is in a superposition of two normal matter particles called D1 and D2.
These are exciting prospects for investigating matter-antimatter asymmetry and the oscillations of mesons.
Mesons with zero electric charge continually undergo a phenomenon called mixing by which they spontaneously change into their antimatter particle, and vice versa.
One is the “pion cloud” model, a popular, decades-old approach that emphasizes the proton’s tendency to emit and reabsorb particles called pions, which belong to a group of particles known as mesons.
At the meson we found real rooms and true beds, and decided to stay for the night.
At half past eight we reached San Carlos, a mean town with no meson or other regular stopping-place.
We found shelter at a sort of a meson, where we could get no supper until nine, or possibly till ten.
The maximum intensity of this extracted meson beam depends on both the charge and energy desired.
This meson beam then travels through a hole in the concrete shielding wall into the meson cave.
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