Concept information
Preferred term
Mesons
Type
-
Topical Descriptor
Broader concept
Entry terms
- mu-Meson
- mu Mesons
- mu-Mesons
- pi-Meson
- pi Mesons
- pi-Mesons
Note
- elementary particles; IM
Scope note
- Short-lived elementary particles found in cosmic radiation or produced from nuclear disintegration. Their mass is between that of protons and electrons and they can be negative, positive, or neutral. pi-Mesons (pions) are heavier than mu-mesons (muons) and are proposed for cancer radiotherapy because their capture and disintegration by matter produces powerful, but short-lived, secondary radiation.
History note
- 91(85); was see under ELEMENTARY PARTICLES 1985-90, was see ELEMENTARY PARTICLES 1975-84; MUONS was see ELEMENTARY PARTICLES 1975-84
URI
http://www.yso.fi/onto/mesh/D008651
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