mu meson
Meson Mes"on, n. [NL., fr. Gr. me`son middle, neut. of me`sos, a., middle.] 1. (Anat.) The mesial plane dividing the body of an animal into similar right and left halves. The line in which it meets the dorsal surface has been called the dorsimeson, and the corresponding ventral edge the ventrimeson. --B. G. Wilder. [1913 Webster]

2. (Physics) An elementary particle made up of two quarks; a hadron having a baryon number of zero; any hadron other than a baryon. Mesons are bosons with integral values of spin, having a mass intermediate between those of the electron and a nucleon; they may have positive or negative charges, or may be neutral. Mesons are of three types: the {pion} ([pi]-meson), {kaon} (K-mesons), and {[eta]-mesons}. [PJC]

{mu meson} (Physics) the former name for the {muon}, a particle which is not a true meson[2]. The term is no longer used in technical literature, except historically. [PJC]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • mu meson — mu meson, mu meson mu meson . (Physics) an elementary particle with a negative charge and a half life of 2 microseconds; the muon. It is a lepton, not a true meson, and decays to an electron and neutrino and antineutrino. Syn: muon, negative muon …   The Collaborative International Dictionary of English

  • mu-meson — mu meson, mu meson mu meson . (Physics) an elementary particle with a negative charge and a half life of 2 microseconds; the muon. It is a lepton, not a true meson, and decays to an electron and neutrino and antineutrino. Syn: muon, negative muon …   The Collaborative International Dictionary of English

  • mu meson — miuonas statusas T sritis fizika atitikmenys: angl. mu meson; muon vok. My Meson, n; Myon, n; Muon, n rus. мю мезон, m; мюон, m pranc. méson mu, m; muon, m …   Fizikos terminų žodynas

  • mu meson — Physics. (no longer in technical use) muon. [1945 50] * * * …   Universalium

  • mu-meson — noun a subatomic particle, now contracted to muon …   Wiktionary

  • mu-meson — noun another term for muon …   English new terms dictionary

  • mu-meson — /ˈmju mizɒn/ (say myooh meezon) noun → muon …   Australian English dictionary

  • mu-meson — noun an elementary particle with a negative charge and a half life of 2 microsecond; decays to electron and neutrino and antineutrino • Syn: ↑muon, ↑negative muon • Hypernyms: ↑lepton …   Useful english dictionary

  • mu meson — Physics. (no longer in technical use) muon. [1945 50] …   Useful english dictionary

  • mu-mes|on — «MYOO MEHS on, MEE son; MEHZ on, MEE zon», noun, or mu meson, a meson having a mass about 207 times that of the electron; muon. Mu mesons are formed by the decay of pimesons and in turn decay to form high energy electrons. ╂[< Greek mu,… …   Useful english dictionary

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