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muon    
n. ｇ粒子(中间子)

ｇ粒子(中间子)

muon
n 1: an elementary particle with a negative charge and a half-
life of 2 microsecond; decays to electron and neutrino and
antineutrino [synonym: {muon}, {negative muon}, {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]


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  • Muon - Wikipedia
    A muon ( ˈ m (j) uː ɒ n M(Y)OO-on; from the Greek letter mu (μ) used to represent it) is an elementary particle similar to the electron, with an electric charge of −1 e and a spin of ⁠ 1 2 ⁠ ħ, but with a much greater mass It is classified as a lepton As with other leptons, the muon is not thought to be composed of any
  • DOE Explains. . . Muons | Department of Energy
    The muon is one of the fundamental subatomic particles, the most basic building blocks of the universe as described in the Standard Model of particle physics Muons are similar to electrons but weigh more than 207 times as much
  • Muons - Lawrence Berkeley National Laboratory
    A muon interacts very little with matter except by ionization Because of this, muons can travel large distances and commonly reach the ground However, they lose energy proportional to the amount of matter they pass
  • Muon | Elementary particle, Lepton, Weak interaction | Britannica
    muon, elementary subatomic particle similar to the electron but 207 times heavier It has two forms, the negatively charged muon and its positively charged antiparticle The muon was discovered as a constituent of cosmic-ray particle “showers” in 1936 by the American physicists Carl D Anderson and Seth Neddermeyer
  • Muons: The Subatomic Particles Shaking Up the World of Physics
    That would be the muon, a particle first discovered in the late 1930s, which is formed in nature when cosmic rays strike particles in our planet's atmosphere Muons are passing through you and everything around you at a speed close to that of light
  • Muon Mystery Deepens with Latest Measurements
    The latest data from the Muon g−2 experiment corroborates previous results, but clashing theoretical predictions leave physicists without a clear conclusion
  • What are muons and where do they come from - universemagazine. com
    The muon, like the electron, has a single negative charge and behaves the same way in most cases, but it is an unstable particle It is mostly born from even less stable pi- and K-mesons, which are formed when molecules in the upper atmosphere are bombarded by high-energy photons
  • Muon - Simple English Wikipedia, the free encyclopedia
    The muon is an elementary particle It has a negative electric charge and half spin Its symbol is "μ-" It is a type of lepton The muon has an average life time of 2 2 micro-seconds or 0 0000022 seconds A muon is like an electron, but it is 200 times heavier Unlike an electron, it decays into other particles
  • Muon g-2 announces most precise measurement of the magnetic anomaly of . . .
    Scientists working on Fermilab’s Muon g-2 experiment released the world’s most precise measurement yet of the magnetic moment of the muon, bringing particle physics closer to the ultimate showdown between theory and experiment that may uncover new particles or forces
  • A long-running experiment finds a tiny particle is still acting weird . . .
    Now, the group has completed the experiment and released a measurement of the muon’s wobble that agrees with what they found before, using more than double the amount of data compared to 2023 They submitted their results to the journal Physical Review Letters





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