Astrophysics (Index)About

muon

(μ)
(electron-like particle that has more mass)

A muon is a type (i.e., flavor) of lepton that has an electric charge of -1, like an electron, but much more mass (about 200 times more) and is unstable, decaying with a lifetime of about 2 microseconds. They result from high-energy particle interactions, and decay into an electron and two neutrinos. Air showers can create them and muon sensors can be used to gather some kinds of data on them.

Muons have a role in confirming relativity: they are detected at Earth's surface, having been created high in Earth's atmosphere; this is taken as evidence of relativity's time-dilation effect, due to the relativistic speed of their downward travel, given their too-short lifetime easily established in laboratory experiments,


(physics,particle)
Further reading:
https://en.wikipedia.org/wiki/Muon
http://hyperphysics.phy-astr.gsu.edu/hbase/Particles/lepton.html#c3
http://www.hep.vanderbilt.edu/~gabellwe/qnweb/qnpptr/What_is_a_Muon.pdf
http://hep.bu.edu/superk/atmnu/
http://spiff.rit.edu/classes/phys314/lectures/muon/muon.html

Referenced by pages:
CASA-MIA
elementary particle
flavor
High Resolution Fly's Eye (HiRes)
IceCube
lepton
particle
standard model
supersymmetry (SUSY)
tau neutrino (ντ)

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