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.
Entry Term(s)
Muons
Pions
mu-Mesons
pi-Mesons
Previous Indexing
Elementary Particles (1975-1984)
Nuclear Physics (1966-1974)
Public MeSH Note
91; was see under ELEMENTARY PARTICLES 1985-90, was see ELEMENTARY PARTICLES 1975-84; MUONS was see ELEMENTARY PARTICLES 1975-84
Online Note
use ELEMENTARY PARTICLES to search MESONS & MUONS 1975-84
History Note
91(85); was see under ELEMENTARY PARTICLES 1985-90, was see ELEMENTARY PARTICLES 1975-84; MUONS was see ELEMENTARY PARTICLES 1975-84
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.
